Jose is in a study to measure the effects of caffeine on mental performance. If Jose is given a caffeine-free beverage that tastes just like a beverage with caffeine, we would say that he is
A) in the experimental group.
B) in a correlational study.
C) receiving a placebo.
D) receiving the dependent variable.
E) participating in introspection research.

Question

Quizplus · Accepted Answer

Jose is receiving a placebo, which is a substance or treatment with no therapeutic effect but is given to someone in order to deceive them into thinking they are receiving an active treatment, in this case caffeine. This is often done in studies to establish a baseline or control group to compare the effects of the intervention, which in this case would be the caffeine beverage.

Jose Is in a Study to Measure the Effects of Caffeine