PSY309H5 Lecture Notes - Lecture 3: Blind Experiment, Diminishing Returns, Lightning
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), explain (and nd cause of) behaviour (what makes kids bully each other?) Three goals determine our approach: observe behaviour (observational method); surveys, interviews, case studies, De ning variables: constructs: hypothetical attributes or mechanisms that help explain or predict behaviour in our theories, operational definition: de ned our construct by specifying exactly how it is measured or manipulated - there are many possibilities. Independent variable: condition that is manipulated or variable that is believed to predict a particular outcome: iv1: situational variable (or manipulated variable): there are 2 or more levels, characteristics of situation or environment - you manipulate. The iv precedes the dv, manipulating the iv results in change in the dv. Dv (assuming no confounds: iv2: participant variable: pre-existing characteristics of an individual, such as someone"s personality, age or ethnicity (when it is something you cannot manipulate in the lab, it is probably participant variable).
