10032011_pptFile

10032011_pptFile - Reasoning Judgment and Choice Date...

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Date: 3/3/2011 Psych213 Winter 2011, Prof Ristic ©Copyright Noti ce. For individual use only. The slides may not be copied, distributed or disseminated in any form without written permission. Reasoning, Judgment and Choice 1
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Announcements Psych213 Winter 2011, Prof Ristic Slide Number 2 March Fridays : 9.30a-10.30am—drop in office hrs Midterm Review—Until March 16 th (~1 Week)—Your TA has your exam Social cognition article is posted (Adolphs, 1999). Last week’s topic: Autism; Last Class is review
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Last Week in WebCT Psych213 Winter 2011, Prof Ristic Slide Number 3 Eidetic imagery vs memory? What’s the difference. Memory is much more detailed (scanning image backward). Eidetic images are perceived as ‘out there’, ‘descriptions are quicker’. Podgorny and Sheperd vs Farah’s experiments Taegst were presnted quickly: this allows you to measure biases in responding, lower criteria Difference in the duration of the target (i.e., the probe) Allows one to measure perceptual information pick-up
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Overview Psych213 Winter 2011, Prof Ristic Slide Number 4 Forms of formal reasoning Deductive Inductive How humans reason: Heuristics and biases
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Example Psych213 Winter 2011, Prof Ristic Slide Number 5 Linda is 31, single, outspoken and very bright. She majored in philosophy. As a student she was deeply concerned with issues of discrimination and social justice and participated in anti-nuclear demonstrations. (a)Linda is a teacher in elementary school (b)Linda works in a bookstore and goes to Yoga (c)Linda is active in the feminist movement (d)Linda is a psychiatric social worker (e)Linda is a bank teller (f)Linda is an insurance salesperson (g)Linda is a bank teller and active in the feminist movement
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Formal reasoning Psych213 Winter 2011, Prof Ristic Slide Number 6 Reasoning: selecting from choices or evaluating opportunities
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Formal reasoning Psych213 Winter 2011, Prof Ristic Slide Number 7 Formal Reasoning: Draw valid conclusions from a set of premises or principles Two general types: Deductive reasoning: process of reasoning from general to specific Inductive reasoning: process of reasoning from specific to general
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Formal reasoning Psych213 Winter 2011, Prof Ristic Slide Number 8 Deductive reasoning Based on logical propositions, or assertions or statements E.g., All cognitive psych students wear shoes. Specific rules of logic allowing us to make valid conclusions **Note that for a conclusion to be logically valid, it does not have to be true** (1) Conditional reasoning (a) modus ponens (b) modus tollens (2) Syllogistic reasoning (a) linear syllogisms (b) categorical syllogisms
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Formal reasoning Psych213 Winter 2011, Prof Ristic
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10032011_pptFile - Reasoning Judgment and Choice Date...

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