Four participants sign up for an experiment examining the effects of alcohol on sociability. One participant is given an alcoholic beverage to drink and is told that it is alcohol. A second participant is given an alcoholic beverage to drink but told that it is nonalcoholic. A third drinks a nonalcoholic beverage but is told that it contains alcohol, and a fourth is given a nonalcoholic beverage and is told that it is nonalcoholic. This illustrates a _____ placebo design.

Question

Quizplus · Accepted Answer

This scenario illustrates a balanced placebo design, where participants are divided into groups that receive different combinations of actual and perceived treatments to assess the psychological and physiological effects separately.

Four Participants Sign Up for an Experiment Examining the Effects