Exam 1 Study Guide

Exam 1 Study Guide - Exam 1 Study Guide (lectures and 2...

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Exam 1 Study Guide (lectures and 2 books) Base-rate information: relative frequency within a population that an event occurs, base rate for everything Example: light goes out—how often a light goes out in a department store base-rate fallacy: underestimate the relative frequency with which an event occurs within a population Example: yellow cab got in an accident—how many cabs in the area base-rate departure: once something changes personally Clustering illusion: the illusion that a sequence of same events isn’t the result of chance Confirmation bias : the tendency to notice, assign more weight to, and actively seek out evidence that confirms the investigator’s claims, and the tendency to ignore and not seek out the evidence which might discount one’s claims Bacon: “it is the peculiar and perpetual error of the human intellect to be more moved and excited by affirmatives than by negatives whereas it ought properly to hold itself indifferently disposed toward both alike” 1. The search for confirmatory information 2. The asymmetric power of confirmatory information 3. The discounting of negative evidence Why do we have a confirmation bias? 1. a survival preference for the familiar, the nearby?
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This note was uploaded on 02/15/2011 for the course PSYC 279 taught by Professor Trout during the Spring '11 term at Loyola Chicago.

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Exam 1 Study Guide - Exam 1 Study Guide (lectures and 2...

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