Researchers Conducted a Study to Determine the Effects of Stress

Multiple Choice

Researchers conducted a study to determine the effects of stress on the immune system by measuring immune system chemicals. To accomplish this goal, they compared college students who were undergoing a stressful series of exams to a group of similar students relaxing during a time of no classes and no exams. The results of this study indicate that ________.

A) the exam group tested higher for immune system chemicals
B) the exam group tested lower for immune system chemicals
C) the relaxed group tested lower for immune system chemicals
D) the relaxed group showed no change over the course of the study