At Folger University, Drs. Chase and Sanborn are conducting an experiment on the effects of caffeine on memory. Participants are randomly assigned to a caffeine or a no-caffeine group; later, their recall of items on a word list is assessed. In which answer does the pair correctly identify a variable in this experiment?
A) caffeine-dependent variable
B) word recall-experimental variable
C) caffeine-independent variable
D) word recall-independent variable

Question

Quizplus · Accepted Answer

Caffeine is the independent variable because it is the condition being manipulated by the researchers to observe its effect on memory recall.