A researcher was investigating the link between memory and caffeine.Half the participants were given a caffeinated beverage before being asked to memorize a word list; the other participants were given a decaffeinated beverage before being asked to memorize the same word list.In this research study, the decaffeinated beverage would be:

Question

Quizplus · Accepted Answer

The decaffeinated beverage is acting as a placebo in this study because it is not expected to have an effect on memory. The goal of using a placebo is to have a control group to compare the effects of the caffeine on memory.

A Researcher Was Investigating the Link Between Memory and Caffeine