PSYB01H3 Chapter Notes - Chapter 7: Factorial Experiment, Analysis Of Variance, Dependent And Independent Variables
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Multifactorial designs is used for experiments that vary two or more independent variables and provide a direct test of the main effects of each ind var as well as the interaction effects between and among the independent variables. In a single factor experiment, a researcher can always add a new level to an existing independent variable as for example when a baseline, no treatment group is incorporated into the study design. By contrast, in a multifactorial experiment, an altogether new independent variable is devised and incorporated into the research design. In exhibit 7. 1 illustrates a multifactorial design that could be used to study how emotions may hi fluency thinking. Ex 7. 1, there are 2 qualitatively different indp var: mood induction with two levels happy or sad. And cognitive exercise with two levels verbal or visual. It provides a more realistic model of psychological phenomena.
