The Figure Below Shows the Results of an Experiment on the Effects

Multiple Choice

The figure below shows the results of an experiment on the effects of heat on aggressive social behavior. Each rat experienced three temperatures. There was a sharp increase in the rate of aggressive behavior in all rats when the temperature went above 90. This study is best described as ________.

A) a between-subjects experiment
B) a within-subject experiment
C) a case study
D) anecdotal evidence