Exhibit 10-5: Choose the internal validity problem that is associated with the situations listed.
-Refer to Exhibit 10-5.Presence of the observer increases scores.
A) history
B) maturation
C) experimenter effect
D) statistical regression
E) diffusion

Question

Quizplus · Accepted Answer

The increase in scores is likely due to the observer's effect on the subjects' behavior, rather than any actual changes in the subjects themselves. This is known as the experimenter effect, a type of internal validity problem.

Exhibit 10-5: Choose the Internal Validity Problem That Is Associated