At Folger U

Multiple Choice

At Folger U., 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; their recall of items on a word list is later assessed. Which pair below correctly identifies a variable in this experiment?

A) caffeine - dependent variable
B) caffeine - independent variable
C) word recall - independent variable
D) word recall - experimental variable