critical thinking how would you reply to strong's arguments

Pursuing Truth: A Guide to Critical Thinking

Chapter 2 arguments.

The fundamental tool of the critical thinker is the argument. For a good example of what we are not talking about, consider a bit from a famous sketch by Monty Python’s Flying Circus : 3

2.1 Identifying Arguments

People often use “argument” to refer to a dispute or quarrel between people. In critical thinking, an argument is defined as

A set of statements, one of which is the conclusion and the others are the premises.

There are three important things to remember here:

• Arguments contain statements.
• They have a conclusion.
• They have at least one premise

Arguments contain statements, or declarative sentences. Statements, unlike questions or commands, have a truth value. Statements assert that the world is a particular way; questions do not. For example, if someone asked you what you did after dinner yesterday evening, you wouldn’t accuse them of lying. When the world is the way that the statement says that it is, we say that the statement is true. If the statement is not true, it is false.

One of the statements in the argument is called the conclusion. The conclusion is the statement that is intended to be proved. Consider the following argument:

Calculus II will be no harder than Calculus I. Susan did well in Calculus I. So, Susan should do well in Calculus II.

Here the conclusion is that Susan should do well in Calculus II. The other two sentences are premises. Premises are the reasons offered for believing that the conclusion is true.

2.1.1 Standard Form

Now, to make the argument easier to evaluate, we will put it into what is called “standard form.” To put an argument in standard form, write each premise on a separate, numbered line. Draw a line underneath the last premise, the write the conclusion underneath the line.

• Calculus II will be no harder than Calculus I.
• Susan did well in Calculus I.
• Susan should do well in Calculus II.

Now that we have the argument in standard form, we can talk about premise 1, premise 2, and all clearly be referring to the same thing.

2.1.2 Indicator Words

Unfortunately, when people present arguments, they rarely put them in standard form. So, we have to decide which statement is intended to be the conclusion, and which are the premises. Don’t make the mistake of assuming that the conclusion comes at the end. The conclusion is often at the beginning of the passage, but could even be in the middle. A better way to identify premises and conclusions is to look for indicator words. Indicator words are words that signal that statement following the indicator is a premise or conclusion. The example above used a common indicator word for a conclusion, ‘so.’ The other common conclusion indicator, as you can probably guess, is ‘therefore.’ This table lists the indicator words you might encounter.

Each argument will likely use only one indicator word or phrase. When the conlusion is at the end, it will generally be preceded by a conclusion indicator. Everything else, then, is a premise. When the conclusion comes at the beginning, the next sentence will usually be introduced by a premise indicator. All of the following sentences will also be premises.

For example, here’s our previous argument rewritten to use a premise indicator:

Susan should do well in Calculus II, because Calculus II will be no harder than Calculus I, and Susan did well in Calculus I.

Sometimes, an argument will contain no indicator words at all. In that case, the best thing to do is to determine which of the premises would logically follow from the others. If there is one, then it is the conclusion. Here is an example:

Spot is a mammal. All dogs are mammals, and Spot is a dog.

The first sentence logically follows from the others, so it is the conclusion. When using this method, we are forced to assume that the person giving the argument is rational and logical, which might not be true.

2.1.3 Non-Arguments

One thing that complicates our task of identifying arguments is that there are many passages that, although they look like arguments, are not arguments. The most common types are:

• Explanations
• Mere asssertions
• Conditional statements
• Loosely connected statements

Explanations can be tricky, because they often use one of our indicator words. Consider this passage:

Abraham Lincoln died because he was shot.

If this were an argument, then the conclusion would be that Abraham Lincoln died, since the other statement is introduced by a premise indicator. If this is an argument, though, it’s a strange one. Do you really think that someone would be trying to prove that Abraham Lincoln died? Surely everyone knows that he is dead. On the other hand, there might be people who don’t know how he died. This passage does not attempt to prove that something is true, but instead attempts to explain why it is true. To determine if a passage is an explanation or an argument, first find the statement that looks like the conclusion. Next, ask yourself if everyone likely already believes that statement to be true. If the answer to that question is yes, then the passage is an explanation.

Mere assertions are obviously not arguments. If a professor tells you simply that you will not get an A in her course this semester, she has not given you an argument. This is because she hasn’t given you any reasons to believe that the statement is true. If there are no premises, then there is no argument.

Conditional statements are sentences that have the form “If…, then….” A conditional statement asserts that if something is true, then something else would be true also. For example, imagine you are told, “If you have the winning lottery ticket, then you will win ten million dollars.” What is being claimed to be true, that you have the winning lottery ticket, or that you will win ten million dollars? Neither. The only thing claimed is the entire conditional. Conditionals can be premises, and they can be conclusions. They can be parts of arguments, but that cannot, on their own, be arguments themselves.

Finally, consider this passage:

I woke up this morning, then took a shower and got dressed. After breakfast, I worked on chapter 2 of the critical thinking text. I then took a break and drank some more coffee….

This might be a description of my day, but it’s not an argument. There’s nothing in the passage that plays the role of a premise or a conclusion. The passage doesn’t attempt to prove anything. Remember that arguments need a conclusion, there must be something that is the statement to be proved. Lacking that, it simply isn’t an argument, no matter how much it looks like one.

2.2 Evaluating Arguments

The first step in evaluating an argument is to determine what kind of argument it is. We initially categorize arguments as either deductive or inductive, defined roughly in terms of their goals. In deductive arguments, the truth of the premises is intended to absolutely establish the truth of the conclusion. For inductive arguments, the truth of the premises is only intended to establish the probable truth of the conclusion. We’ll focus on deductive arguments first, then examine inductive arguments in later chapters.

Once we have established that an argument is deductive, we then ask if it is valid. To say that an argument is valid is to claim that there is a very special logical relationship between the premises and the conclusion, such that if the premises are true, then the conclusion must also be true. Another way to state this is

An argument is valid if and only if it is impossible for the premises to be true and the conclusion false.

An argument is invalid if and only if it is not valid.

Note that claiming that an argument is valid is not the same as claiming that it has a true conclusion, nor is it to claim that the argument has true premises. Claiming that an argument is valid is claiming nothing more that the premises, if they were true , would be enough to make the conclusion true. For example, is the following argument valid or not?

• If pigs fly, then an increase in the minimum wage will be approved next term.
• An increase in the minimum wage will be approved next term.

The argument is indeed valid. If the two premises were true, then the conclusion would have to be true also. What about this argument?

• All dogs are mammals
• Spot is a mammal.
• Spot is a dog.

In this case, both of the premises are true and the conclusion is true. The question to ask, though, is whether the premises absolutely guarantee that the conclusion is true. The answer here is no. The two premises could be true and the conclusion false if Spot were a cat, whale, etc.

Neither of these arguments are good. The second fails because it is invalid. The two premises don’t prove that the conclusion is true. The first argument is valid, however. So, the premises would prove that the conclusion is true, if those premises were themselves true. Unfortunately, (or fortunately, I guess, considering what would be dropping from the sky) pigs don’t fly.

These examples give us two important ways that deductive arguments can fail. The can fail because they are invalid, or because they have at least one false premise. Of course, these are not mutually exclusive, an argument can be both invalid and have a false premise.

If the argument is valid, and has all true premises, then it is a sound argument. Sound arguments always have true conclusions.

A deductively valid argument with all true premises.

Inductive arguments are never valid, since the premises only establish the probable truth of the conclusion. So, we evaluate inductive arguments according to their strength. A strong inductive argument is one in which the truth of the premises really do make the conclusion probably true. An argument is weak if the truth of the premises fail to establish the probable truth of the conclusion.

There is a significant difference between valid/invalid and strong/weak. If an argument is not valid, then it is invalid. The two categories are mutually exclusive and exhaustive. There can be no such thing as an argument being more valid than another valid argument. Validity is all or nothing. Inductive strength, however, is on a continuum. A strong inductive argument can be made stronger with the addition of another premise. More evidence can raise the probability of the conclusion. A valid argument cannot be made more valid with an additional premise. Why not? If the argument is valid, then the premises were enough to absolutely guarantee the truth of the conclusion. Adding another premise won’t give any more guarantee of truth than was already there. If it could, then the guarantee wasn’t absolute before, and the original argument wasn’t valid in the first place.

2.3 Counterexamples

One way to prove an argument to be invalid is to use a counterexample. A counterexample is a consistent story in which the premises are true and the conclusion false. Consider the argument above:

By pointing out that Spot could have been a cat, I have told a story in which the premises are true, but the conclusion is false.

Here’s another one:

• If it is raining, then the sidewalks are wet.
• The sidewalks are wet.
• It is raining.

The sprinklers might have been on. If so, then the sidewalks would be wet, even if it weren’t raining.

Counterexamples can be very useful for demonstrating invalidity. Keep in mind, though, that validity can never be proved with the counterexample method. If the argument is valid, then it will be impossible to give a counterexample to it. If you can’t come up with a counterexample, however, that does not prove the argument to be valid. It may only mean that you’re not creative enough.

• An argument is a set of statements; one is the conclusion, the rest are premises.
• The conclusion is the statement that the argument is trying to prove.
• The premises are the reasons offered for believing the conclusion to be true.
• Explanations, conditional sentences, and mere assertions are not arguments.
• Deductive reasoning attempts to absolutely guarantee the truth of the conclusion.
• Inductive reasoning attempts to show that the conclusion is probably true.
• In a valid argument, it is impossible for the premises to be true and the conclusion false.
• In an invalid argument, it is possible for the premises to be true and the conclusion false.
• A sound argument is valid and has all true premises.
• An inductively strong argument is one in which the truth of the premises makes the the truth of the conclusion probable.
• An inductively weak argument is one in which the truth of the premises do not make the conclusion probably true.
• A counterexample is a consistent story in which the premises of an argument are true and the conclusion is false. Counterexamples can be used to prove that arguments are deductively invalid.

( Cleese and Chapman 1980 ) . ↩︎

Critical thinking arguments for beginners

Critical thinking is one of the most valuable sets of life skills you can ever have and it’s never too late to learn them. People who can think critically are better at problem solving of all kinds, whether at school or work, in ordinary daily life, and even in crises. You can practice critical thinking by working through typical arguments from premises to conclusions.

You need no special qualifications to become a strong critical thinker, and can’t pick it up simply from reading books about critical thinking. The only way to hone critical thinking skills is to practice critical thinking.

What is critical thinking?

Let’s first illustrate the answer to this question by taking a look at how we can think critically about potential misinformation online.

Your friend is a supporter of another party and expresses outrage at the alleged law-breaking, election influencing, and reduced chances for her own party candidate. Many other friends pile in with sympathetic and equally outraged comments, or new allegations.

Your search reveals that credible sources have already uncovered the photo as having been manipulated and spread by an online political group. It was originally a local news story about a crashed postal truck in another country five years earlier and has no relationship whatsoever to the current election in your country…

What are critical thinking arguments?

Let’s now look at some of the basic building blocks underpinning critical thinking arguments for beginners.

Deductive reasoning

Deductive reasoning attempts to absolutely guarantee a conclusion’s truth through logic. If a deductive argument’s premises are true, it should be impossible for its conclusion to be false. For example:

Inductive reasoning

How do i assess a critical thinking argument.

If an argument is said to be ‘valid’, it means that it is impossible for the conclusion to be false if the premises are true. If an argument is ‘invalid’, it is possible for the premises to be true and the conclusion false.

When an argument is inductively strong, the truth of the premises makes the the truth of the conclusion probable. In contrast, in an inductively ‘weak’ argument, the truth of the premises do not make the truth of the conclusion probable.

Counterexamples

All of these fundamentals can be applied both to simple practice arguments and then to more complex problems of the type you might encounter in real life.

How can I practice critical thinking arguments for beginners?

Now that you have the basic tools and concepts for putting together a critical thinking argument, you can look  out for real life examples to practice with.

News stories

Social media, corporate statements.

Evaluate claims made by big corporations in public statements and annual reports alongside their actions and impacts. For example, if a major oil company claims that it is working to combat climate change, how strong, valid and sound are their arguments?

Conclusion…

Whatever your starting point, we hope this article has set you on the road to becoming a critical thinker, and that these developing skills might open new doors at school, at work or in other areas of life. The world needs more critical thinking at all levels and your contribution might one day be valuable.

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Enhancing critical listening skills: techniques for effective comprehension, mind mapping for critical thinking: boost analytical skills effortlessly, critical thinking, fake news and cancel culture, what is the watson glaser critical thinking test an overview, download this free ebook.

• Choosing Effective Vocabulary
• How to Fill a Page (When You Have Nothing to Say)
• Resources – Books
• Critical Thinking and Reading Skills
• Key Terms and the Inference Continuum
• Bad Inferences – Fallacies and Biases
• Application: Inferences and History
• An Aside: Strong Inferences vs. Ghosts
• Eight Types of Evidence – Strengths and Weaknesses
• Bad Evidence – Fallacies and Poor Appeals
• Value Conflicts and Key Terms
• Tragic Application of Values
• Common Value Systems
• Fallacies and a Few Fun Techniques
• Donna Hicks’s Essential Elements of Dignity
• Fundamental Needs
• Mapping Classroom Culture – Support and Humiliation
• The Dignity Pledge
• Separation and Segregation
• Stripping Away Resources and Protections
• Violence and Intimidation
• Murder and Elimination
• Toxic Mythologies and Deep Narratives
• Scapegoating and Conspiracy Theories
• Caricature and Stereotypes
• Denial and Willful Ignorance
• Conclusion and FAQs

Eight Types of Evidence – Strengths and Weaknesses

Overview: The ability to distinguish sources of evidence allows students to better evaluate and generate information in support of arguments.

Evidence is a huge component of reasoning and argument. Understanding how evidence works and how it might be questioned, probed, or attacked, significantly boosts students’ reasoning ability. The following material offers a vocabulary that can operate as a toolkit for use on any task that requires analysis or generation of evidence.

1. Personal Experience – It happened to you. You know what bronchitis feels like because you had it last year, and it was terrible.

Strengths – Emotionally intense and relevant, collected by your very own senses.

Weaknesses  – The way you interpret your own experiences is very personal and based on your own expectations and biases. Also, your senses have all sorts of flaws, as does your memory. You remember events and moments that are bizarre, intense, or otherwise of interest to you, which is a small sliver of the world around you.

2. Personal Observation – You saw or measured the event. You haven’t had a migraine, but your mom gets them and you have witnessed how painful and awful they can be.

Strengths – Collected by the senses, scientific measurement techniques can carefully and cleverly isolate the information you are seeking.

Weaknesses – The same as Personal Experience, scientific measurements can be corrupted by factors you didn’t anticipate.

3. Testimonial – The experience or observation of someone else; a witness. My friend saw a guy with pink eye yesterday. He said it was pretty gross.

Strengths – They were there, emotional weight of hearing someone’s story or claim. We want to believe one another because lying is so dangerous to our social fabric.

Weaknesses – The person might be mistaken (see weaknesses of Personal Experience), lying, or leaving out important details.

4. Appeal to Authority – The experience or observations of a learned and/or respected person; an expert. My brother is a doctor and treated a guy with a broken arm. He told me that broken bones don’t always hurt as much as you would expect.

Strengths – This person presumably has a lot of access to information, a depth of experience, and a professional reputation on the line.

Weaknesses – Same as Testimonial, the person’s expertise could be based on a depth of experience in field separate from the one we’re dealing with. (See Appeal to Questionable Authority Fallacy).

5. Case Examples – Historical, literary, or other recorded examples. They could be the statements of witnesses or experts, or they could be more general events that we cite to support our claim. War is terrible for soldiers on the ground. You can read all about it in many Civil War diaries.

Strengths – Same data available to everyone, you can carefully seek out and find examples that support your claim (see Confirmation Bias), emotional weight of vivid examples.

Weaknesses – Examples might be isolated and/or unrepresentative of “normal” experience (see Hasty Generalization ).

6. Research Studies   – Large sample of carefully gathered  information scrutinized with statistical tools and peer-reviewed by other experts.

Strengths – Large samples protect against Hasty Generalizations, the same data is available to everyone.

Weaknesses  – There is a long list of potential pitfalls to good research. They include poor design, poor data gathering, and poor data analysis. There are conflicting studies which cite different parts of the same data, and there are weak studies published to push a political agenda.

7. Analogy – Citing a similar circumstance; if it worked in that ugly situation, it will work in this ugly situation. If cigarettes give mice cancer, they probably give humans cancer.

Strengths – Much of life follows general rules; if something works in one place, there’s a pretty good chance it will work in another place.

Weaknesses – Places can be different! You have to look at salient details (a.k.a the details that actually contribute to whatever it is you are looking at). If a flying squirrel can fall from a tall building and survive, I should be able to do the same thing. We are both mammals! (See Bad Analogy Fallacy.)

8. Intuition – Your gut feeling, presumably based on years of experience. It feels true. The inferences that pop into your head first are likely to be based on intuition rather than research studies or other types of evidence. If you hear a bump in the night, the weight of your experience will offer a causal inference, and if that inference isn’t dangerous (“it was just the wind!”), you will likely just go back to sleep.

Strengths  – For most issues, our experience is a good guide to life. We have built a pretty good picture of the world, and we can generally rely on it to stay consistent. Malcolm Gladwell explains the power of quick inferences in his book Blink , and Daniel Kahneman describes it as “fast thinking” in his book Thinking, Fast and Slow .

Weaknesses – Your experience is personal and unique. Other people have had different experiences and will therefore have different gut feelings. There is no way to prove that your intuition is correct. If people trust it, it’s because you have been right many times in the past and will therefore trust you to be right again (see Appeal to Questionable Authority). All of the fallacies and biases that lead us to make weak inferences are relevant here.

Again, this list is adapted from Asking the Right Questions  by Neil Browne and Stuart Keeley, which offers a more in-depth look at each type of evidence. I’ve simplified and adapted their work to serve as an introduction to students new to this approach.

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8 Arguments and Critical Thinking

J. anthony blair, introduction [1].

This chapter discusses two different conceptions of argument, and then discusses the role of arguments in critical thinking. It is followed by a chapter in which David Hitchcock carefully analyses one common concept of an argument.

1. Two meanings of ‘argument’

The word ‘argument’ is used in a great many ways. Any thorough understanding of arguments requires understanding ‘argument’ in each of its senses or uses. These may be divided into two large groupings: arguments had or engaged in , and arguments made or used . I begin with the former.

1.1 A n ‘a rgument’ as something two parties have with each othe r, something they get into, the kind of ‘argument’ one has in mind in de scribing two people as “arguing all the time ”

For many people outside academia or the practice of law, an argument is a quarrel . It is usually a verbal quarrel, but it doesn’t have to use words. If dishes are flying or people are glaring at each other in angry silence, it can still be an argument. What makes a quarrel an argument is that it involves a communication between two or more parties (however dysfunctional the communication may be) in which the parties disagree and in which that disagreement and reasons, actual or alleged, motivating it are expressed—usually in words or other communicative gestures.

Quarrels are emotional. The participants experience and express emotions, although that feature is not exclusive to arguments that are quarrels. People can and do argue emotionally, and (or) when inspired by strong emotions, when they are not quarrelling. Heated arguments are not necessarily quarrels; but quarrels tend to be heated.

What makes quarrels emotional in some cases is that at least one party experiences the disagreement as representing some sort of personal attack, and so experiences his or her ego or sense of self-worth as being threatened. Fear is a reaction to a perceived threat, and anger is a way of coping with fear and also with embarrassment and shame. In other cases, the argument about the ostensible disagreement is a reminder of or a pretext for airing another, deeper grievance. Jealousy and resentment fuel quarrels. Traces of ego-involvement often surface even in what are supposed to be more civilized argumentative exchanges, such as scholarly disputes. Quarrels tend not to be efficient ways of resolving the disagreements that gives rise to them because the subject of a disagreement changes as the emotional attacks escalate or because the quarrel was often not really about that ostensible disagreement in the first place.

In teaching that ‘argument’ has different senses, it is misleading to leave the impression (as many textbooks do) that quarrels are the only species of argument of this genus. In fact they are just one instance of a large class of arguments in this sense of extended, expressed, disagreements between or among two or more parties.

A dispute is an argument in this sense that need not be a quarrel. It is a disagreement between usually two parties about the legality, or morality, or the propriety on some other basis, of a particular act or policy. It can be engaged in a civil way by the disputants or their proxies (e.g., their spokespersons or their lawyers). Sometimes only the disputing parties settle their difference; sometimes a third party such as a mediator, arbitrator or judge is called in to impose a settlement.

A debate is another argument of this general kind. Debates are more or less formalized or regimented verbal exchanges between parties who might disagree, but in any case who take up opposing sides on an issue. Procedural rules that govern turn-taking, time available for each turn, and topics that may be addressed are agreed to when political opponents debate one another. Strict and precise rules of order govern who may speak, who must be addressed, sometimes time limits for interventions, in parliamentary or congressional debates in political decision-making bodies, or in formal intercollegiate competitive debates. Usually the “opponent” directly addressed in the debate is not the party that each speaker is trying to influence, so although the expressed goal is to “win” the debate, winning does not entail getting the opponent to concede. Instead, it calls for convincing an on-looking party or audience—the judge of the debate or the jury in a courtroom or the television audience or the press or the electorate as a whole—of the superior merits of one’s case for the opinion being argued for in the debate.

To be distinguished from a debate and a dispute by such factors as scale is a controversy . Think of such issues as the abortion controversy, the climate change controversy, the same-sex marriage controversy, the LGBT rights controversy, the animal rights controversy. The participants are many—often millions. The issues are complex and there are many disputes about details involved, including sometimes even formal debates between representatives of different sides. Typically there is a range of positions, and there might be several different sides each with positions that vary one from another. A controversy typically occurs over an extended period of time, often years and sometime decades long. But an entire controversy can be called an argument, as in, “the argument over climate change.” Controversies tend to be unregulated, unlike debates but like quarrels, although they need not be particularly angry even when they are emotional. Like quarrels, and unlike debates, the conditions under which controversies occur, including any constraints on them, are shaped by the participants.

Somewhere among quarrels, debates and controversies lie the theoretical arguments that theorists in academic disciplines engage in, in academic journals and scholarly monographs. In such arguments theorists take positions, sometimes siding with others and sometimes standing alone, and they argue back and forth about which theoretical position is the correct one. In a related type of argument, just two people argue back and forth about what is the correct position on some issue (including meta-level arguments about what is the correct way to frame the issue in the first place).

The stakes don’t have to be theories and the participants don’t have to be academics. Friends argue about which team will win the championship, where the best fishing spot is located, or what titles to select for the book club. Family members argue about how to spend their income, what school to send the children to, or whether a child is old enough to go on a date without a chaperone. Co-workers argue about the best way to do a job, whether to change service providers, whether to introduce a new product line, and so on. These arguments are usually amicable, whether or not they settle the question in dispute.

All of these kinds of “argument” in this sense of the term—quarrels, friendly disputes, arguments at work, professional arguments about theoretical positions, formal or informal debates, and various kinds of controversy—share several features.

• They involve communications between or among two or more people. Something initiates the communication, and either something ends it or there are ways for participants to join and to exit the conversation. They entail turn-taking (less or more regimented), each side addressing the other side and in turn construing and assessing what the other has to say in reply and formulating and communicating a response to the replies of the other side. And, obviously, they involve the expression, usually verbal, of theses and of reasons for them or against alternatives and criticisms.
• They have a telos or aim, although there seems to be no single end in mind for all of them or even for each of them. In a quarrel the goal might be to have one’s point of view prevail, to get one’s way, but it might instead (or in addition) be to humiliate the other person or to save one’s own self-respect. Some quarrels—think of the ongoing bickering between some long-married spouses—seem to be a way for two people to communicate, merely to acknowledge one another. In a debate, each side seeks to “win,” which can mean different things in different contexts ( cf. a collegiate debate vs. a debate between candidates in an election vs. a parliamentary debate). Some arguments seemed designed to convince the other to give up his position or accept the interlocutor’s position, or to get the other to act in some way or to adopt some policy. Some have the more modest goal of getting a new issue recognized for future deliberation and debate. Still others are clearly aimed not at changing anyone’s mind but at reinforcing or entrenching a point of view already held (as is usually the case with religious sermons or with political speeches to the party faithful). Some are intended to establish or to demonstrate the truth or reasonableness of some position or recommendation and (perhaps) also to get others to “see” that the truth has been established. Some seem designed to maintain disagreement, as when representatives of competing political parties argue with one another.
• All these various kinds of argument are more or less extended, both in the sense that they occur over time, sometimes long stretches of time, and also in the sense that they typically involved many steps: extensive and complex support for a point of view and critique of its alternatives.
• In nearly every case, the participants give reasons for the claims they make and they expect the other participants in the argument to give reasons for their claims. This is even a feature of quarrels, at least at the outset, although such arguments can deteriorate into name-calling and worse. (Notice that even the “yes you did; no I didn’t;…; did; didn’t” sequence of the Monty Python “Having an argument” skit breaks down and a reason is sought.)

The kinds of argument listed so far are all versions of having an argument (see Daniel J. O’Keefe, 1977, 1982). Some might think that this is not the sense of ‘argument’ that is pertinent to critical thinking instruction, but such arguments are the habitat of the kinds of argument that critical thinkers need to be able to identify, analyze and evaluate.

1.2 An argument a s something a person makes (or constructs, invents, borrows) consisting of purported reasons alleged to suggest, or support or prove a point and that is used for some purpose such as to persuade someone of some claim, to justify someone in maintaining the position claimed, or to test a claim .

When people have arguments—when they engage in one or another of the activities of arguing described above—one of the things they routinely do is present or allege or offer reasons in support of the claims that they advance, defend, challenge, dispute, question, or consider. That is, in having “arguments,” we typically make and use “arguments.” The latter obviously have to be arguments in different sense from the former. They are often called “reason-claim” complexes. If arguments that someone has had constitute a type of communication or communicative activity, arguments that someone has made or used are actual or potential contributions to such activities. Reason-claim complexes are typically made and used when engaged in an argument in the first sense, trying to convince someone of your point of view during a disagreement or dispute with them. Here is a list of some of the many definitions found in textbooks of ‘argument’ in this second sense.

“… here [the word ‘argument’] … is used in the … logical sense of giving reasons for or against some claim.” Understanding Arguments, Robert Fogelin and Walter Sinnott-Armstrong, 6th ed., p. 1. “Thus an argument is a discourse that contains at least two statements, one of which is asserted to be a reason for the other.” Monroe Beardsley, Practical Logic, p. 9. “An argument is a set of claims a person puts forward in an attempt to show that some further claim is rationally acceptable.” Trudy Govier. A Practical Study of Arguments, 5th ed., p. 3. An argument is “a set of clams some of which are presented as reasons for accepting some further claim.” Alec Fisher, Critical Thinking, An Introduction, p. 235. Argument: “A conclusion about an issue that is supported by reasons.” Sherry Diestler, Becoming a Critical Thinker, 4th ed., p. 403. “ Argument: An attempt to support a conclusion by giving reasons for it.” Robert Ennis, Critical Thinking, p. 396. “Argument – A form of thinking in which certain statements (reasons) are offered in support of another statement (conclusion).” John Chaffee, Thinking Critically, p. 415 “When we use the word argument in this book we mean a message which attempts to establish a statement as true or worthy of belief on the basis of other statements.” James B. Freeman, Thinking Logically, p. 20 “Argument. A sequence of propositions intended to establish the truth of one of the propositions.” Richard Feldman, Reason and Argument, p. 447. “Arguments consist of conclusions and reasons for them, called ‘premises’.” Wayne Grennan, Argument Evaluation, p. 5. Argument: “A set of claims, one of which, the conclusion is supported by [i.e., is supposed to provide a reason for] one or more of the other claims. Reason in the Balance, Sharon Bailin & Mark Battersby, p. 41.

These are not all compatible, and most of them define ‘argument’ using other terms—‘reasons’, ‘claims’, ‘propositions’, ‘statements’, ‘premises’ and ‘conclusions’—that are in no less need of definition than it is. In the next chapter, David Hitchcock offers a careful analysis of this concept of an argument.

Some define argument in this second sense as a kind of communication; others conceive it as a kind of set of propositions that can serve communicative functions, but others as well (such as inquiry). Either way, the communicative character, or function, of arguments has been the subject of much of the research in the past several decades. Most recently what some have called “multi-modal” argument has attracted attention, focusing on the various ways arguments can be communicated, especially visually or in a mix of verbal and visual modes of communication. Some have contended that smells and sounds can play roles in argument communication as well. This area of research interest would seem to have relevance for the analysis of arguments on the web.

1.3 Argumentation

‘Argumentation’ is another slippery term. It is used in several different senses.

Sometimes it is used to mean the communicative activity in which arguments are exchanged: “During their argumentation they took turns advancing their own arguments and criticizing one another’s arguments.” Sometimes ‘argumentation’ denotes the body of arguments used in an argumentative exchange: “The evening’s argumentation was of high quality.” And occasionally you will find it used to refer to the reasons or premises supporting a conclusion, as in: “The argumentation provided weak support for the thesis.” ‘Argumentation theory’ is the term often used to denote theory about the nature of arguments and their uses, including their uses in communications involving exchanges of arguments.

2 The relation between critical thinking and argument

2 .1 arguments are both tools of critical thinking and objects of critical thinking.

In … [one] sense, thought denotes belief resting upon some basis, that is, real or supposed knowledge going beyond what is directly present. … Some beliefs are accepted when their grounds have not themselves been considered …. … such thoughts may mean a supposition accepted without reference to its real grounds. These may be adequate, they may not; but their value with reference to the support they afford the belief has not been considered. Such thoughts grow up unconsciously and without reference to the attainment of correct belief. They are picked up—we know not how. From obscure sources and by unnoticed channels they insinuate themselves into acceptance and become unconsciously a part of our mental furniture. Tradition, instruction, imitation—all of which depend upon authority in some form, or appeal to our advantage, or fall in with strong passions—are responsible for them. Such thoughts are prejudices, that is, prejudgments, not judgments proper that rest upon a survey of evidence. (John Dewey, How We Think , pp. 4-5, emphasis added.)

People—all of us—routinely adopt beliefs and attitudes that are prejudices in Dewey’s sense of being prejudgments, “not judgments proper that rest upon a survey of evidence.” One goal of critical thinking education is to provide our students with the means to be able, when it really matters, to “properly survey” the grounds for beliefs and attitudes.

Arguments supply one such means. The grounds for beliefs and attitudes are often expressed, or expressible, as arguments for them. And the “proper survey” of these arguments is to test them by subjecting them to the critical scrutiny of counter-arguments.

Arguments also come into play when the issue is not what to believe about a contentious issue, but in order just to understand the competing positions. Not only are we not entitled to reject a claim to our belief if we cannot counter the arguments that support it; we are not in possession of an understanding of that claim if we cannot formulate the arguments that support it to the satisfaction of its proponents.

Furthermore, arguments can be used to investigate a candidate for belief by those trying “to make up their own minds” about it. The investigator tries to find and express the most compelling arguments for and against the candidate. Which arguments count as “most compelling” are the ones that survive vigorous attempts, using arguments, to refute or undermine them. These survivors are then compared against one another, the pros weighed against the cons. More arguments come into play in assessing the attributed weights.

In these ways, a facility with arguments serves a critical thinker well. Such a facility includes skill in recognizing, interpreting and evaluating arguments, as well as in formulating them. That includes skill in laying out complex arguments, in recognizing argument strengths and weaknesses, and in making a case for one’s critique. It includes the ability to distinguish the more relevant evidence from the less, and to discriminate between minor, fixable flaws and major, serious problems, in arguments. Thus the critical thinker is at once adept at using arguments in various ways and at the same time sensitive in judging arguments’ merits, applying the appropriate criteria.

Moreover, arguments in the sense of “reasons-claim” complexes surround us in our daily lives. Our “familiars”, as Gilbert (2014) has dubbed them—our family members, the friends we see regularly, shopkeepers and others whose services we patronize daily, our co-workers—engage us constantly in argumentative discussions in which they invoke arguments to try to get us to do things, to agree, to judge, to believe. The public sphere—the worlds of politics, commerce, entertainment, leisure activities, social media (see Jackson’s chapter)—is another domain in which arguments can be found, although (arguably) mere assertion predominates there. In the various roles we play as we go through life—child, parent, spouse or partner, student, worker, patient, subordinate or supervisor, citizen (voter, jurist, community member), observer or participant, etc.—we are invited with arguments to agree or disagree, approve or disapprove, seek or avoid. We see others arguing with one another and are invited to judge the merits of the cases they make. Some of these arguments are cogent and their conclusions merit our assent, but others are not and we should not be influenced by them. Yet others are suggestive and deserve further thought.

We can simply ignore many of these arguments, but others confront us and force us to decide whether or not to accept them. Often it is unclear whether someone has argued or done something else: just vented, perhaps, or explained rather than argued, or merely expressed an opinion without arguing for it, or was confused. So we initially might have to decide whether there is an argument that we need to deal with. When it is an argument, often in order to make up our minds about it we need first to get clear about exactly what the argument consists of. So even before we evaluate this argument we have to identify and analyze it. (These operations are discussed in Chapter 12.)

In the end we have to decide for ourselves whether the argument makes its case or falls short. Does the conclusion really follow from the premises? Is there enough evidence to justify the conclusion? Is it the right kind of evidence? Are there well-known objections or arguments against the conclusion that haven’t been acknowledged and need to be answered satisfactorily? Can they be answered? And are the premises themselves believable or otherwise acceptable? Are there other arguments, as good or better, that support the claim?

Critical thinking can (and should!) come into all of these decisions we need to make in the identification, the analysis and the assessment of arguments.

2 .2  Critical thinking about things other than arguments

Many critical thinking textbooks focus exclusively on the analysis and evaluation of arguments. While the centrality of arguments to the art of critical thinking is unquestionable, a strong case can be made that critical thinking has other objectives in addition to appreciating arguments. In their analysis of the concept of critical thinking, Fisher and Scriven suggest the following definition:

Critical thinking is skilled and active interpretation and evaluation of o b servations and communications , information and argumentation. (1997, p. 21, emphasis added)

We agree with the gist of this claim, but notice what Fisher and Scriven propose as the objects to which critical thinking applies. Not just argumentation, but as well observations, communications and information. About observations, they note that:

What one sees (hears, etc.) are usually things and happenings, and one often has to interpret what one sees, sometimes calling on critical thinking skills to do so, most obviously in cases where the context involves weak lighting, strong emotions, possible drug effects, or putatively magical or parapsychological phenomena. Only after the application of critical thinking—and sometimes not even then—does one know what one “really saw”. … When the filter of critical thinking has been applied to the observations, and only then, one can start reasoning towards further conclusions using these observations as premises. ( Ibid ., p, 37)

An example is the recent large number of convictions in the U.S.A. that originally relied on eyewitness testimony but that have been overturned on the basis of DNA evidence. [2] ,  [3]

The DNA evidence proved that the accused was not the culprit, so the moral certainty of the eyewitness had to have been mistaken. The observation of the eyewitness was flawed. He or she did not think critically about whether the conditions need ed to make a reliable o b servation were present (e.g., were strong emotions like fear involved? was the lighting good? has he or she ordinarily a good memory for faces? was there time to observe carefully? were there distractions present?). Neither, probably, did the lawyers on either side, or else they immorally suppressed what should have been their doubts. As a consequence, innocent people languished in jail for years and guilty parties went free.

Communications are another object for critical thought. When in reply to Harry’s question, “How are you doing?” Morgan says, in a clipped and dull voice and a strained expression on her face, “I’m fine”, Harry needs to be aware that “How are you doing?” often functions as equivalent to a simple greeting, like “Hi” and so the response “Fine” could similarly be functioning as a polite return of the greeting, like “Hi back to you”, and not as an accurate report of the speaker’s condition. Harry needs to notice and interpret other aspects of Morgan’s communication—her lethargic tone of voice and her anxious facial expression—and to recognize the incompatibility between those signals and the interpretation of her response as an accurate depiction of Morgan’s state of well-being. He needs to employ critical interpretive skills to realize that Morgan has communicated that she is not fine at all, but for some reason isn’t offering to talk about it.

If President Trump did in fact say to his then F.B.I. director James Comey, about the F.B.I. investigation of former National Security Advisor Michaell Flynn “I hope you can let this go”, was it legitimate for Comey to interpret the President’s comment as a directive? And was Comey’s response, which was simply to ignore President Trump’s alleged comment, an appropriate response? What was going on? It takes critical thinking to try to sort out these issues. Taking the President’s alleged comment literally, it just expresses his attitude towards the FBI investigation of Flynn. But communications from the President in a tête-à-tête in the White House with the Director of the FBI are not occasions for just sharing attitudes. This was not an occasion on which they could step out of their political roles and chat person-to-person. The President can legitimately be presumed to be communicating his wishes as to what his FBI Director should do, and such expressions of wishes are, in this context, to be normally understood as directives. On the other hand, for the President to direct that an ongoing investigation by the FBI be stopped, or that it come up with a pre-determined finding, is illegal: it’s obstruction of justice. So Comey seemed faced with at least two possible interpretations of what he took the President to be saying: either an out-of-place expression of his attitude towards the outcome of the Flynn investigation or an illegal directive. Which was the President’s intention? However, there are other possibilities.

Was President Trump a political tyro whose lack of political experience might have left him ignorant of the fact that the FBI Director has to keep investigations free of political interference? Or might Trump have thought that the Presidency conveys the authority to influence the outcome of criminal investigations? Or might President Trump have been testing Mr. Comey to see if he could be manipulated? And Mr. Comey could have responded differently. He could have said, “I wish we could let this go too, Mr. President, but there are questions about General Flynn’s conduct that have to be investigated, and as you know, we cannot interfere with an ongoing FBI investigation”. Such a response would have forced the President to take back what he allegedly said, withdrawing any suggestion that his comment was a directive, or else to make it plain that he was indeed directing Comey to obstruct justice. In the event, apparently Mr. Comey did not take this way out, which would at once have displayed loyalty to the President (by protecting him from explicitly obstructing justice) and also have affirmed the independence of the FBI from interference from the White House. Perhaps he thought that the President clearly had directed him to obstruct justice, and judged that giving him an opportunity explicitly to withdraw that directive amounted to overlooking that illegal act, which would be a violation of his responsibilities as Director of the FBI. If so, however, simply not responding to the President’s comment, the path Comey apparently chose, also amounted to turning a blind eye to what he judged to be President Trump’s illegal directive.

As these two examples illustrate, the interpretation of communications, and the appropriate response to them can require critical thinking: recognizing different functions of communication, and being sensitive to the implications of different contexts of communication; being sensitive to the roles communicators occupy and to the rights, obligations, and limits attached to such roles.

As Fisher and Scriven acknowledge, “defining information is itself a difficult task.” They make a useful start by distinguishing information from raw data (“the numbers or bare descriptions obtained from measurements or observations”, op . cit., p. 41). No critical thinking is required for the latter; just the pains necessary to record raw data accurately, In many cases, though, the interpretation of raw data, the meaning or significance that they are said to have, can require critical thinking.

One might go beyond Fisher and Scriven’s list of other things besides arguments to which critical thinking can be applied. A thoughtful appreciation of novels or movies, plays or poetry, paintings or sculptures requires skilled interpretation, imagining alternatives, thoughtful selection of appropriate criteria of evaluation and then the selection and application of appropriate standards, and more. A good interior designer must consider the effects and interactions of space and light and color and fabrics and furniture design, and coordinate these with clients’ lifestyles, habits and preferences. Advanced practical skills in various sciences come into play. A coach of a sports team must think about each individual team member’s skills and deficiencies, personality and life situation; about plays and strategies, opponents’ skills sets; approaches to games; and much more. Conventional approaches need to be reviewed as to their applicability to the current situation. Alternative possibilities need to be creatively imagined and critically assessed. And all of this is time-sensitive, sometimes calling for split-second decisions. The thinking involved in carrying out the tasks of composing a review of some work of literature or art or of coaching a sports team can be routine and conventional, or it can be imaginative, invoking different perspectives and challenging standard criteria.

The list could go on. The present point is that, while argument is central to critical thinking, critical thinking about and using arguments is not all there is to critical thinking. [4]

Bailin, Sharon & Battersby, Mark. (2010). Reason in the Balance , An I n quiry Approach to Critical Thinking , 1 st ed. Toronto: McGraw-Hill Ryerson.

Beardsley, Monroe C. (1950). Practical L ogic . Englewood Cliffs, NJ: Prentice-Hall.

Chaffee, John. 1985. Thinking Critically . Boston: Houghton Mifflin.

Dewey, John. (1910, 1991). How We Think . Lexington, MAD.C. Heath; Buffalo, NY: Prometheus Books.

Diestler, Sherry. (2005). Becoming a Critical Thinker , 4 th ed. Upper Saddle River, NJ: Pearson Education.

Ennis, Robert H. (1996). Critical Thinking . Upper Saddle River, NJ: Prentice-Hall.

Feldman, Richard. (1993). Reason and Argument , 2 nd ed. Upper Saddle River, NJ: Prentice-Hall.

Fisher, Alex.(2001). Critical Thinking, An Introduction . Cambridge: Cambridge University Press.

Fisher, Alec & Scriven, Michael. (1997). Critical Thinking, Its Definition and Assessment . Point

Reyes, CA: EdgePress; Norwich, UK: Center for Research in Critical Thinking.

Fogelin, Robert & Sinnott-Armstrong, Walter. (2001). Understanding A r guments , An Introduction to Informal Logic , 6 th ed. Belmont, CA: Wadsworth.

Freeman, James B. (1988.) Thinking Logically , Basic Concepts of Reaso n ing . Englewood Cliffs, NJ: Prentice-Hall.

Grennan, Wayne . (1984). Argument Evaluation . Lanham, MD: University Press of America.

Govier, Trudy. (2001). A Practical Study of Argument , 5 th ed. Belmont, CA: Wadsworth.

O’Keefe, Daniel J. (1977). Two concepts of argument. Journal of the Amer i can Forensic Association , 13 , 121-128.

O‘Keefe, Daniel J. (1982). The concepts of argument and arguing. In J. R. Cox & C. A. Willard (Eds.), Advances in Argumentation Theory and R e search , pp. 3-23. Carbondale, IL: Southern Illinois University Press.

• © J. Anthony Blair ↵
• According to the Innocence Project, “Eyewitness misidentification is the greatest contributing factor to wrongful convictions proven by DNA testing, playing a role in more than 70% of convictions [in the U.S.A.] overturned through DNA testing nationwide.” (https://www.innocenceproject.org/causes/eyewitness-misidentification/, viewed August 2017). ↵
• I owe the general organization and many of the specific ideas of this chapter to a series of lectures by Jean Goodwin at the Summer Institute on Argumentation sponsored by the Centre for Research in Reasoning, Argumentation and Rhetoric at the University of Windsor. ↵

Studies in Critical Thinking Copyright © by J. Anthony Blair is licensed under a Creative Commons Attribution 4.0 International License , except where otherwise noted.

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• What Is Critical Thinking? | Definition & Examples

What Is Critical Thinking? | Definition & Examples

Published on May 30, 2022 by Eoghan Ryan . Revised on May 31, 2023.

Critical thinking is the ability to effectively analyze information and form a judgment .

To think critically, you must be aware of your own biases and assumptions when encountering information, and apply consistent standards when evaluating sources .

Critical thinking skills help you to:

• Identify credible sources
• Evaluate and respond to arguments
• Assess alternative viewpoints
• Test hypotheses against relevant criteria

Table of contents

Why is critical thinking important, critical thinking examples, how to think critically, other interesting articles, frequently asked questions about critical thinking.

Critical thinking is important for making judgments about sources of information and forming your own arguments. It emphasizes a rational, objective, and self-aware approach that can help you to identify credible sources and strengthen your conclusions.

Critical thinking is important in all disciplines and throughout all stages of the research process . The types of evidence used in the sciences and in the humanities may differ, but critical thinking skills are relevant to both.

In academic writing , critical thinking can help you to determine whether a source:

• Is free from research bias
• Provides evidence to support its research findings
• Considers alternative viewpoints

Outside of academia, critical thinking goes hand in hand with information literacy to help you form opinions rationally and engage independently and critically with popular media.

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Critical thinking can help you to identify reliable sources of information that you can cite in your research paper . It can also guide your own research methods and inform your own arguments.

Outside of academia, critical thinking can help you to be aware of both your own and others’ biases and assumptions.

Academic examples

However, when you compare the findings of the study with other current research, you determine that the results seem improbable. You analyze the paper again, consulting the sources it cites.

You notice that the research was funded by the pharmaceutical company that created the treatment. Because of this, you view its results skeptically and determine that more independent research is necessary to confirm or refute them. Example: Poor critical thinking in an academic context You’re researching a paper on the impact wireless technology has had on developing countries that previously did not have large-scale communications infrastructure. You read an article that seems to confirm your hypothesis: the impact is mainly positive. Rather than evaluating the research methodology, you accept the findings uncritically.

Nonacademic examples

However, you decide to compare this review article with consumer reviews on a different site. You find that these reviews are not as positive. Some customers have had problems installing the alarm, and some have noted that it activates for no apparent reason.

You revisit the original review article. You notice that the words “sponsored content” appear in small print under the article title. Based on this, you conclude that the review is advertising and is therefore not an unbiased source. Example: Poor critical thinking in a nonacademic context You support a candidate in an upcoming election. You visit an online news site affiliated with their political party and read an article that criticizes their opponent. The article claims that the opponent is inexperienced in politics. You accept this without evidence, because it fits your preconceptions about the opponent.

There is no single way to think critically. How you engage with information will depend on the type of source you’re using and the information you need.

However, you can engage with sources in a systematic and critical way by asking certain questions when you encounter information. Like the CRAAP test , these questions focus on the currency , relevance , authority , accuracy , and purpose of a source of information.

When encountering information, ask:

• Who is the author? Are they an expert in their field?
• What do they say? Is their argument clear? Can you summarize it?
• When did they say this? Is the source current?
• Where is the information published? Is it an academic article? Is it peer-reviewed ?
• Why did the author publish it? What is their motivation?
• How do they make their argument? Is it backed up by evidence? Does it rely on opinion, speculation, or appeals to emotion ? Do they address alternative arguments?

Critical thinking also involves being aware of your own biases, not only those of others. When you make an argument or draw your own conclusions, you can ask similar questions about your own writing:

• Am I only considering evidence that supports my preconceptions?
• Is my argument expressed clearly and backed up with credible sources?
• Would I be convinced by this argument coming from someone else?

If you want to know more about ChatGPT, AI tools , citation , and plagiarism , make sure to check out some of our other articles with explanations and examples.

• ChatGPT vs human editor
• ChatGPT citations
• Is ChatGPT trustworthy?
• Using ChatGPT for your studies
• What is ChatGPT?
• Chicago style
• Paraphrasing

 Plagiarism

• Types of plagiarism
• Self-plagiarism
• Avoiding plagiarism
• Academic integrity
• Consequences of plagiarism
• Common knowledge

Critical thinking refers to the ability to evaluate information and to be aware of biases or assumptions, including your own.

Like information literacy , it involves evaluating arguments, identifying and solving problems in an objective and systematic way, and clearly communicating your ideas.

Critical thinking skills include the ability to:

You can assess information and arguments critically by asking certain questions about the source. You can use the CRAAP test , focusing on the currency , relevance , authority , accuracy , and purpose of a source of information.

Ask questions such as:

• Who is the author? Are they an expert?
• How do they make their argument? Is it backed up by evidence?

A credible source should pass the CRAAP test  and follow these guidelines:

• The information should be up to date and current.
• The author and publication should be a trusted authority on the subject you are researching.
• The sources the author cited should be easy to find, clear, and unbiased.
• For a web source, the URL and layout should signify that it is trustworthy.

Information literacy refers to a broad range of skills, including the ability to find, evaluate, and use sources of information effectively.

Being information literate means that you:

• Know how to find credible sources
• Use relevant sources to inform your research
• Understand what constitutes plagiarism
• Know how to cite your sources correctly

Confirmation bias is the tendency to search, interpret, and recall information in a way that aligns with our pre-existing values, opinions, or beliefs. It refers to the ability to recollect information best when it amplifies what we already believe. Relatedly, we tend to forget information that contradicts our opinions.

Although selective recall is a component of confirmation bias, it should not be confused with recall bias.

On the other hand, recall bias refers to the differences in the ability between study participants to recall past events when self-reporting is used. This difference in accuracy or completeness of recollection is not related to beliefs or opinions. Rather, recall bias relates to other factors, such as the length of the recall period, age, and the characteristics of the disease under investigation.

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What is critical thinking?

Can you tie your shoelaces and multiply 75 x 24 at the same time?

You probably have to pause and focus on the problem. It's the same with critical thinking - it's a slow and challenging process (Kahneman, 2011). Critical thinking is reasoned and reflective, and involves questioning your own thought processes or long-held beliefs (Lucas & Syrett, n.d.). At university you will have to apply it in every assignment as a way of justifying any statement you make. There are several elements to critical thinking:

• Evaluating types of arguments
• Evaluating information sources
• Identifying bias
• Identifying logical fallacies

Critical thinking at university

• Evaluating arguments

When we describe "arguments" in university writing, we are not referring to being hostile or combative. Instead, argument is just a way of explaining why you believe a statement to be true (Van Cleave, 2016), and you must use your critical thinking skills in the process. You could look at arguments as a way of persuading people. Here are three methods of persuasion that are used in just about every argument you'll read. They all have their place, and several methods can be used in one piece of writing.

• Ethos is about using credibility to support your argument. Some people have their own credibility to draw on (for example a doctor with 30 years experience on a topic), however most of use have to use the credibility of others. This means that you have to use sources that come from people who are knowledgeable on a topic, with a background of credible experience or education. Judge for yourself whether an author is an "expert", don't just take their word for it. For more information, see the video "What is authority?", below.
• Pathos is about using the power of emotion to support your argument. This can be effective when writing about controversial topics. For example, if you are writing about sexual harrassment in the workplace, you could include someone's personal narrative about that experience. Use pathos sparingly; logic and credibility are the stronger forms of argument. However, pathos can make a real impact on the reader if you include it in the right place.
• Logos is about using logic to support your argument. This involves pointing to the facts, including statistics, survey data, and study results. For example, if writing about drunk driving it can be helpful to point to the rates of drunk driving accidents in Australia.

• Argument and critical thinking (Excelsior Writing Lab) Learn how to develop critical thinking skills and apply them to essay writing.

Using credible sources is the best way to form a strong argument. Evaluating sources is also part of critical thinking - you need to determine the credibility and quality of a source to use it in your writing. One way of doing this is to remember the acronym C.R.A.A.P :

• Can you tell when the material was published?
• Is the information up to date?
• Is the information still accurate?
• Is the site regularly updated?
• When was it last updated?
• What kind of information is included?
• Is the information written at the appropriate level for your question (e.g. encyclopedia article vs. journal article)
• Is the information relevant to your topic?
• Do you feel comfortable citing this source in your work?
• Can you find the authors?
• Are there contact details for those authors?
• Do they provide their qualifications?
• Are they recognised as experts?
• Are they affiliated with a reputable organisation?
• Is the publisher reputable?
• Are there references and citations?
• Do the authors explain how they reached conclusions, or how they conducted their study?
• Who is the publisher?
• Is it peer-reviewed?
• Is the information still up to date?
• Does the information appear biased or slanted in any way?
• Representing a group of people or organisation?
• Selling goods or services?
• Promoting a particular political or social viewpoint?
• Who is the intended audience - academics, the general public, a particular demographic?

(California State University, 2010)

If you've ever observed (or participated in) arguments on the Internet, you will have encountered logical fallacies . These are points that result from poor reasoning and flawed logic. Logical fallacies are a good example of what happens when you stop thinking critically and surrender to your own biases. See the list below for some common logical fallacies:

• Example: "So you think we should have a sexual harassment policy at all workplaces? You want to make it illegal for men and women to smile at each other!"
• Example: "You are either in favour of cyclist helmet laws or you think all cyclists should die!"
• Example: "If we lower the voting age to 16, then soon enough we'll have toddlers deciding the leaders of our country!"
• Example: "What would you know? You're ugly and have terrible taste in shoes!"
• Example: "You might say that smoking is bad for you, but my grandma smoked a pack a day until she was 97!"

Want more examples of logical fallacies? See the document below.

California State University. (2010). Evaluating information - applying the CRAAP test.  https://www.csuchico.edu/lins/handouts/eval_websites.pdf

Excelsior Online Writing Lab. (2018). Argument and critical thinking. https://www.oercommons.org/courses/argument-critical-thinking/view

Kahneman, D. (2011). Thinking, fast and slow . Doubleday.

Lucas, L., & Syrett, H. (n.d.). Critical thinking and evaluating information.  https://www.oercommons.org/courseware/module/25864/overview

Van Cleave, M. J. (2016). Introduction to logic and critical thinking . https://www.oercommons.org/courses/introduction-to-logic-and-critical-thinking-2

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Building strong arguments.

For essays, speeches, debates, meetings, or intense discussions, you may need to organize your thoughts and defend them against people who might not agree with you. To do your best in these situations, follow the process outlined in the next few pages. Remember that arguments stem from a claim or position supported by compelling evidence—evidence that persuades the reader or listener to accept a point of view.

The Seven C’s of Building an Argument

When you need to build an argument, use the seven C’s to develop and support a position about a specific topic:

• Consider the situation. Think of all aspects of the communication situation What are the subject and purpose of your message? What medium will you use? Who is the receiver? What is the context? (See the next page .)
• Clarify your thinking. Think about the pros and cons of each side of the issue, and do some preliminary research so that you understand the subject well. (See the next page. )
• Construct a claim. Write a single statement that gives your position and the main reason that you hold that position. (See page 104. )
• Collect evidence. Research the issue in depth, using primary, secondary, and tertiary sources. Investigate to make sure your claim holds up, and change it if it doesn’t. Gather a variety of key evidence to support your claim. (See page 104 .)
• Consider key objections. Think about other viewpoints related to the argument. What reasons could people cite to support opposing positions? What major problems could they see with your argument? Decide how you will answer those objections—by countering them (saying why they are unimportant) or by conceding them (saying they are important but can be overcome). (See page 105 .)
• Craft your argument. Use your claim statement and the evidence you have gathered to argue persuasively for your position. Appeal to the needs of your reader, and answer any key objections. (See page 106 .)
• Confirm your main point. Wrap up your argument by stating your claim in a new way, connecting it to real life and to the future.

Your Turn Which step in the process outlined above corresponds to the questioning phase of the inquiry process? Which steps correspond to planning? Which steps relate to research? In what ways does building an argument require the inquiry process?

1. Consider the situation.

Before you can build a strong argument, you need to analyze the communication situation . Ask yourself the following questions:

• As sender, what role do I have?
• What subject is my message about?
• What purpose do I have?
• What medium am I using?
• Who is the receiver? How can I convince that person?
• What is the context? When and where will the message arrive?

Sender: I'm writing less as a high school student and more as a concerned American citizen.

Message Subject: I'm writing about the national debt.

Message Purpose: I'm calling for spending cuts and tax increases to address the debt.

Medium: This should be a letter to the editor, so it can reach a general audience.

Receiver: My audience is all Americans who are worried about federal fiscal responsibility.

Context: This message will appear in a newspaper locally, and it could be picked up by a wire service to appear in national papers.

Your Turn Think of the topics you are studying in your classes. Which topic do you feel most strongly about? What position would you most like to argue for? Analyze your communication situation by answering the questions above.

2. Clarify your thinking.

Before you can convince others, you must be clear in your own mind about your position. What are you trying to prove? Why do you feel the way you do? What kind of proof do you have? In addition, you should consider both sides of the issue. To do this, set up a pro-con chart like the one shown here:

Your Turn Create a pro-con chart, arguing for and against your position. Thoroughly explore both pros and cons. You will need to understand all perspectives to make a convincing case.

3. Constructing a Claim

After you have thoroughly investigated an issue, you are ready to construct a claim about it. Arguments develop three types of claims :

To formulate a claim, name your subject and express the truth, value, or policy you want to promote.

4. Collecting Evidence

After stating a claim, you must support it. Different types of details provide different types of support:

Your Turn (1) Use the formula above to construct a truth, a value, and a policy claim about a subject you feel strongly about. (2) Choose one of your claims and research it. Write down one of each of the four types of supporting details listed in the chart above.

5. Considering Key Objections

Any debatable issue has at least two, and often many, points of view. When you build an argument, you need to consider alternate positions. Just as you have gathered support for your position, those with other perspectives will have gathered objections. Start by identifying them.

Your Turn Reverse your thinking. Imagine that you strongly oppose the claim you made and researched on the previous pages. List at least three serious objections to your previous position.

Answering Objections

Ignoring the objections to your argument weakens rather than strengthens it. You need to face objections head-on . The following strategies have been applied to each of the example objections above.

Your Turn Answer each of the objections to your own claim that you listed in the previous “Your Turn” activity. Either rebut the objection, recognize part of it but overcome the rest, or concede and move on .

6. Crafting Your Argument

Your Turn Think about the audience for the position (claim) you chose to work with on pages 103-104 . How receptive or resistant are they? Which of the structures above would you use to craft your argument? Or would you use a different structure? Explain your answer.

Using Persuasive Appeals

Classical rhetoric, or the art of persuasion, prescribes three ways to appeal to your audience:

• Appeal to ethos —demonstrate that you are an ethical and trustworthy source.
• Appeal to logos —use logic to argue for your position.
• Appeal to pathos —move the person emotionally to connect with your position.

The most persuasive arguments may use all three types of appeals—but always responsibly. Each of these appeals can be abused, as you will see in the section on logical fallacies ( pages 108–112 ).

Your Turn You’ve learned about using logic (logos) to connect with the reader. Now consider what your audience wants or needs in order to make an emotional connection (pathos). How does your position help them get what they need, want, or expect?

7. Confirming Your Main Point

Complete your argument by stating your main point in a new way and connecting it to the future. Leave your audience with a strong final thought.

Using Socratic Questions to Examine Arguments

You’ve learned how to build a compelling argument. There’s also a technique for examining arguments and deepening thinking.

The Greek philosopher Socrates examined arguments through questions, pushing students to use logic to deduce answers. Socratic questions are especially useful for probing the thinking of opponents in a debate.

Socratic Questions

• Could you please rephrase that statement?
• How would you summarize your position?
• Are you saying that ________________?
• What are the assumptions underlying that statement?
• Is that statement based on the belief that ________________?
• Could you explain how/why ________________?
• Can you demonstrate how this premise is true?
• What evidence supports this claim?
• Are you implying/concluding that ________________?
• What analogy could you use to express that idea?
• How would ________________ respond to that idea?
• How do you answer the objection that ________________?
• What will result from that position?
• How can we apply that idea in a broader context?
• What is the value of that idea, and why?
• Why are we asking this question?
• How does this question connect to the situation?
• How can we reframe this question?

Your Turn With a partner, discuss a current issue that you are studying in class. Use Socratic questions occasionally to deepen the discussion. Which questions were most helpful? Which were least helpful? Why?

Additional Resources

Newsletter Article: Making Your Claim

Web Page: Counter-Argument

Web Page: What is a counter-argument?

Web Page: Ethos, Pathos, Logos

Web Page: Socrates

Web Page: Socratic Questioning

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