A Researcher Attempts to Study the Effect of Fear Arousal

Multiple Choice

A researcher attempts to study the effect of fear arousal on attitude change. One group experiences no fear while the other group experiences a very high level of fear. Results show no difference in the amount of attitude change in the two groups. Which of the following should have been used in the research?

A) A third group with a moderate level of fear
B) A less reliable measure of attitude change
C) A stronger manipulation of fear
D) A single level of the independent variable