Kareem laughs whenever his neck is touched. Now his mommy says gotcha before touching his neck. Eventually, as soon as his mommy says gotcha, Kareem starts to laugh. In this example, what is the neutral stimulus?
a. laughing when his neck is touched c. laughing when he hears gotcha
b. saying gotcha d. touching his neck
Question 2
The one-group pretest-post design is an improvement over a one-group design because it provides the researcher with:
A) alternative explanations
B) meaningful comparisons
C) internal validity
D) a separate control group
