In a study examining the effects of music on food choice, participants are told to eat as many cookies as they want from a dish, while different genres of music play in the background depending on the condition to which the participant had been assigned. Participants are not told that the music is an important factor in the study. When participants ask the experimenter why there is music playing, the experimenter shrugs and replies that the room always has music piped in. This experiment makes use of:

Question

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The experiment uses active deception by misleading participants about the true purpose of the music, and passive deception by omitting information about the music's role in the study.

In a Study Examining the Effects of Music on Food