Discussion Post: Confounding Variables
Scenario: Ek, Friesen, and Scherer (1970) tested whether lying influenced one's voice quality. Participants were randomly assigned to view either a pleasant film or an unpleasant film, but all of the participants were asked to describe the film they saw a being pleasant. ( thus, the subjects who watched the unpleasant film has to lie about what they saw ) An analysis of voice quality showed that participants used significantly highly voices when they were describing the unpleasant film rather than the pleasant film. Why can't the authors conclude that lying produced differences in voice quality?
Determine the possible confounding variable(s) and consider how they might be eliminated using research designs presented in the readings (e.g., 2x2 factorial design).
The response must include a reference list. Using Times New Roman 12 pnt font, double-space, one-inch margins, and APA style of writing and citations.