PSYC85H3 Chapter 10: Chapter 10 Notes

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12 May 2011
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20th century, stats method & logical positivism: use investigative practices, e. g. introspection. Var: can be falsified, falsifiability: observations don"t match dispositional cocncept. Operationism: operationism: have say how concept is to be measured, like op. Def: operational definition: how concept will be measured. Where did psychologists stand: behaviourists liked logical positivism, for gestalt, they couldn"t explain surplus meaning with log. pos, so didn"t like it, wasn"t compatible with psychoanalysis, theories were untestable, unfalsifiable. Criticisms of operationism: sigmund koch www. notesolution. com, argued operationism wasn"t meant to be only definition of concepts, was to supplement and analyze, because we still decide what is incorrect or correct, operationism emphasizes justification rather than discovery www. notesolution. com. Statistical i nference: needed way to explicitly say how to evaluate data, r. a. fisher most impt methologist. Fisher"s approach to designing experiments: used randomization b/c can tell probability of being correct on chance alone, recommended chance of 5% of guessing to be acceptable.