Which of the following does NOT increase the likelihood of internal validity?
A)Use of control for extraneous variables
B)Use of random assignment
C)Use of a pretest
D)Use of experimental control

Question

Quizplus · Accepted Answer

A pretest may actually create a bias in the study by sensitizing participants to the topic or measuring the variable of interest twice, which may affect their responses or behaviors during the actual study. Therefore, using a pretest may decrease internal validity, not increase it. On the other hand, control for extraneous variables, random assignment, and experimental control are all methods that can increase the likelihood of internal validity by reducing the possibility of alternative explanations for the results or confounding variables.

Which of the Following Does NOT Increase the Likelihood of Internal