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Winter term Lecture #4.doc

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York University
PSYC 1010
Rebecca Jubis

Friday, February-01-13 Winter term Lecture #4 Factor analysis: determines whether questions on a test or across tests are related to one another. Ex. An intelligence test that consists of 6 items: 1 Structure of I.Q (Intelligence) 2 views: 1. IQ reflects a general capacity for reasoning 2. IQ reflects individual abilities Nature-Nurture Controversy 1. Family studies: assessed the influence of hereditary on IQ by examining blood relatives and seeing how similar they are on IQ scores  1 degree relatives share 50% of their genes (parent/child, siblings) nd  2 degree relatives 25% (nieces/newphews)  3 degree relatives 12.5% (cousins) - The closer related you are the higher the correlation of IQ 2. Twin studies: compare the IQ’s of identical to fraternal twins 3. Adoption studies How do genetics and the environment interact? - Heridity sets the limits or boundaries on intelligence, and the environment determines where a person falls within these limits Reaction range: refers to the genetically determined limits on IQ - this is 20-25 IQ points Flynn Effect: environment Motivation and work; Emotion. Modules 32-37 ( but only 33.4 in Module 33) Motivation : 2 components: 1. Drive or arousal – the energizing force, the urge to go out and do so
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