<p>In this provocative book, Lance Rips describes a unified theory of natural deductive reasoning and fashions a working model of deduction, with strong experimental support, that is capable of playing a central role in mental life.Rips argues that certain inference principles are so central to our notion of intelligence and rationality that they deserve serious psychological investigation to determine their role in individuals' beliefs and conjectures. Asserting that cognitive scientists should consider deductive reasoning as a basis for thinking, Rips develops a theory of natural reasoning abilities and shows how it predicts mental successes and failures in a range of cognitive tasks.In parts I and II of the book Rips builds insights from cognitive psychology, logic, and artificial intelligence into a unified theoretical structure. He defends the idea that deduction depends on the ability to construct mental proofs - actual memory units that link given information to conclusions it warrants. From this base Rips develops a computational model of deduction based on two cognitive skills: the ability to make suppositions or assumptions and the ability to posit sub-goals for conclusions. A wide variety of original experiments support this model, including studies of human subjects evaluating logical arguments as well as following and remembering proofs. Unlike previous theories of mental proof, this one handles names and variables in a general way. This capability enables deduction to play a crucial role in other thought processes,such as classifying and problem solving.In part III Rips compares the theory to earlier approaches in psychology which confined the study of deduction to a small group of tasks, and examines whether the theory is too rational or too irrational in its mode of thought.Lance J. Rips is Professor of Psychology at Northwestern University.</p>

The Psychology of Proof: Deductive Reasoning in Human Thinking

Politics & Social Sciences

Rips, Lance J.

Philosophy

Bradford Books

The Psychology of Survey Response

Health, Fitness & Dieting

Tourangeau, Roger

Rasinski, Kenneth

Psychology & Counseling

Cambridge University Press

<p>Drawing on classic and modern research from cognitive psychology, social psychology, and survey methodology, this book examines the psychological roots of survey data, how survey responses are formulated, and how seemingly unimportant features of the survey can affect the answers obtained. Topics include the comprehension of survey questions, the recall of relevant facts and beliefs, estimation and inferential processes people use to answer survey questions, the sources of the apparent instability of public opinion, the difficulties in getting responses into the required format, and distortions introduced into surveys by deliberate misreporting.</p>

Mental Health

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Books by Rips, Lance J.