Harry Harlow Completed a Number of Studies in Which Baby

Multiple Choice

Harry Harlow completed a number of studies in which baby rhesus monkeys were raised with two artificial mothers. One of the mothers was made of wire and delivered food, while the other was made of cloth and provided no food. Harlow was interested in which of the mothers the infant monkeys would seek out when they were startled or frightened. In these studies the dependent variable was:

A) the material from which the surrogate was made
B) the surrogate that the infant monkey preferred when it was startled
C) the age of the infant monkey at the time of the test
D) the length of time the infant monkey spent exploring the cage