In the experiment with the rats and the goal box, the number of food pellets given when the rats reach the goal box is the
A) extraneous variable.
B) confounding variable.
C) dependent variable.
D) independent variable.

Question

Quizplus · Accepted Answer

In an experiment, the independent variable is the factor that the researcher manipulates to observe its effect on the dependent variable. In this case, the number of food pellets given to the rats when they reach the goal box is the independent variable because it is being manipulated to see its effect on the rats' behavior, which would be the dependent variable.

In the Experiment with the Rats and the Goal Box