PSYC 201 Chapter Notes - Chapter 5: Dependent And Independent Variables, Concurrent Validity, Criterion Validity
29 Jan 2017
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Independent variable: the condition that is manipulated or selected by the experimenter to determine its effect on behaviour: the stimulus (cause) of stimulus-response psychology, has at least 2 levels: the different values of an independent variable. Variables of interest: its role in the cause & effect of an observed relationship is unclear. Situational variable: one whose levels can be manipulated: characteristics of the situation or environment. Subject variable: a difference between subjects that cannot be controlled, but only selected (ex. race, gender) Intervening variables: inferred process mediating the effects of an independent variable on a dependent variable. # of people at a table: use #"s to indicate the level of variability. Categorical variable: varies in kind (ex. gender: use labels to indicate the level of variability. Falls between the upper & lower real limits. Are important when graphing data & performing statistical computations.
