Patricia is told by the experimenter that the lights in the experimental room may put people in a positive mood. Although the lights do not actually have any effect on mood, Patricia nevertheless begins to feel a positive mood. The change in mood probably represents which of the following?
A) A pilot test effect
B) A manipulation check
C) A placebo effect
D) A baseline mood effect

Question

Quizplus · Accepted Answer

The change in Patricia's mood is likely due to the placebo effect, where an individual experiences a change in their condition due to their belief in the effectiveness of a treatment or intervention, despite it having no therapeutic effect. In this case, Patricia's belief in the mood-enhancing properties of the lights, as suggested by the experimenter, leads her to feel a positive mood, even though the lights do not actually affect mood.

Patricia Is Told by the Experimenter That the Lights in the Experimental