Dr Wang Is Conducting a Study to Test Ways of Helping

Multiple Choice

Dr. Wang is conducting a study to test ways of helping students reduce stress during exams. While taking practice exams, one group of students is trained in deep muscle relaxation and a second group is trained to visualize success. Dr. Wang's study compares the effectiveness of these two stress-reduction strategies. This is an example of _________

A) basic research.
B) applied research.
C) observational research.
D) theoretical research.