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 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

Question

Quizplus · Accepted Answer

CB) Caffeine is the independent variable because it is what the experimenters are manipulating to see if it affects memory.C) Word recall is the dependent variable because it is what is being measured to see if there is an effect from the caffeine.

Doctors Chase and Sanborn Are Conducting an Experiment on the Effects