What are the methods of psychological investigation?

A. Case study method
B. Observation method
C. Experimental method
D. All of the above

________is a basic fact of motivational life:

A. Affection
B. Conflict
C. Both (a) and (b)
D. None of these

The factor to be tested must be defined exactly. Then_______groups are set up:

A. Five
B. Four
C. Three
D. two

“Modern clinical Psychology” is written by:

A. Skinner
B. Monroe
C. Sheldon j. Korchin
D. None of the above