A Health Psychologist Is Interested in the Effectiveness of a New

Multiple Choice

A health psychologist is interested in the effectiveness of a new exercise on reducing the rate of heart attacks because the exercise requires no equipment and, therefore, can be done without cost.
-What is the research hypothesis?

A) People will participate because it does not cost them any money.
B) The exercise will make a difference in the rate of heart attacks.
C) The exercise will reduce the rate of heart attacks.
D) The exercise will increase the rate of heart attacks.