Doctors 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 names and identifies the variables in this experiment?
A)Word recall-control variable; caffeine-experimental variable
B)Word recall-independent variable; caffeine-dependent variable
C)Word recall-dependent variable; caffeine-independent variable
D)Word recall-experimental variable; caffeine-control variable

Question

Quizplus · Accepted Answer

The dependent variable is the outcome that will be measured, which in this case is word recall. The independent variable is the one being manipulated, which is caffeine consumption. Therefore, word recall is the dependent variable and caffeine is the independent variable.

Doctors Chase and Sanborn Are Conducting an Experiment on the Effects