NSCS 315A Lecture Notes - Lecture 1: Operational Definition
27 Aug 2016
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Lecture 1 - intro to variables in a study. Variable that is changed by the experimenter to examine its effects on the dv. Variable measured by the experimenter, dependent on the iv. Variables that co-vary with levels/conditions of the iv might affect dv obtained in different conditions. Female / male subjects are exposed to different experimental conditions. Noise present in one condition but not in the other. When an experiment has an ev systematically co-vary with one level of the iv which will ultimately affect the dv. Counterbalancing: when each condition precedes and follows every other condition an equal number of times. The observable events that are manipulated (iv) or measured (dv) Music and writing has done an okay job of operationally defining mood. Is the operational definition valid: does the dv actually measure what its meant to measure? b. Example: does training in vocabulary increase intelligence? ii.
