In an experimental manipulation, before a group of rats were timed running in a maze, half the rats in a study were given caffeine and half were not. In this study, the caffeine is the _______ variable and the running in the maze is the _______ variable.
A) within-subjects; between-subjects
B) dependent; independent
C) between-subject; within-subjects
D) independent; dependent

Question

Quizplus · Accepted Answer

In this experiment, caffeine is being manipulated by the researcher, making it the independent variable. The dependent variable is the rats' performance in running the maze, which is being measured and is expected to be affected by the caffeine manipulation. Furthermore, neither within-subjects nor between-subjects variables are relevant in this scenario.

In an Experimental Manipulation, Before a Group of Rats Were