PSY 250 Lecture Notes - Lecture 2: Operational Definition
17 Mar 2016
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Theory: exering self-control depletes resources, which makes addiional self-control more diicult (theory of ego depleion, baumeister et al. , 1998; muraven et al. Hypothesis: people asked to force themselves to eat radishes instead of chocolates will be more likely to quit working on a diicult puzzle than people not asked to exert self- control over eaing. Theoreical deiniion of iv: exering self-control refers to denying immediate graiicaion. Operaional deiniion of iv: self-control instrucions: self-control (eat radishes) vs. no. Theoreical deiniion of dv: exering addiional self-control refers to addiional denial of immediate graiicaion. Operaional deiniion of dv: persistence on aversive task (diicult puzzle), measured in min/sec. Predicive accuracy: it should reliably predict behavior. Parsimony/economy: it"s no more complicated than it needs to be. Ferility: it should suggest new ideas for further study, these new ideas are ofspring . Veriiability: a theory is testable through empirical methods.
