Glossary of Critical Thinking Terms

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argument

A rationale or information structure that includes reasons for believing the truth of some conclusion

autonomy in thinking

"Autonomy in thinking" refers to maintaining awareness, choice, and self-governance about the qualities of one's thinking one wishes to keep or change.

burden of proof

An obligation that is normally attributed to a speaker or writer to provide credible or plausible reasons for his or her major claims. See also Burden of Proof

claim

A statement that is asserted as true with an argumentative or explanatory rationale. A Claim can be a premise or a conclusion.

conclusion

The claim in an argumentative or explanatory rationale which is supported by the premises. In arguments, conclusions are claims are the part of the rationale for which the premises provide reasons. In explanations, the conclusion is the claim that the explanation purports to explain.

deduction

A kind of inference in which a conclusion is presented as a necessary consequence of some premises. Contrast to induction.

explanation

A rationale in which some phenomena or fact (stated in the conclusion) is given an account which satisfies doubt about how the phenomena or fact came about.

induction

A kind of inference in which reasoning from facts warrants a degree of confidence in some conclusion. Induction depends upon finding patterns in our experience from which we can either generalize or infer some specific conclusion. Induction includes any common inference from the regularity of experience.

presumption

Presumptions are claims that are generally taken to be true within the context of the deliberation. Questioning presumptions is a specific critical response strategy.

rationale

Any information structure in which reasons or explanations are offered for a claim (the conclusion).

reason

Within critical thinking, a reason is any consideration or evidence that helps support an inference to a conclusion.

reflective/deliberative context

Any situation (face-to-face or mediated) in which reasons are offered for conclusions.

reflective persona

The pattern of roles and preferences you express in reflective/deliberative contexts. Your "reflective style" or personality in situations in which reasons are being given.

validity

A property of deductive arguments which have the sort of logical structure which guarantees that if the premises are true, then the conclusion will be. This is a "conditional guarantee" of the truth of the conclusion, since the premises must still be true for the conclusion to follow.