PSYCH 3312 Chapter Notes - Chapter 11: Modus Tollens, Modus Ponens, Deductive Reasoning
17 Feb 2018
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In deduction, you set premises which are true and work to make conclusions. Syllogism - a set of sentences that serve as the basis for reasoning. Conditional reasoning - if a, then b. Ppl are more apt to accept modus ponens (affirming the antecedent) than modus. Affirming the consequent does not allow you to confirm the antecedent. Same w/ denying the antecedent and then denying the consequent. The content of a deductive-reasoning problem can affect how well ppl deal w/ it. Our beliefs bias us into accepting nonvalid conclusions. Influences our judgments of invalid arguments more than valid ones. If a person is drinking beer, they must be over 21 . You have to check things that are a and not b . Each of us possesses a mental logic. Says that you should perform equivalently on every task that has a particular logical structure (but this is not true!!)
