Why Is It Important for Professional Psychologists to Be Familiar

Why is it important for professional psychologists to be familiar with research methods?

A) they might need to perform an evaluation to determine the effectiveness of an agency's program
B) they might need to critically evaluate the scientific evidence for the effectiveness of some new clinical treatment for depression
C) both alternatives a. and b. are true
D) none of the above-professional psychologists only need to apply the results of research; they need not be familiar with how the research was done