Placebo Effect:
a)    If an individual has faith in his therapist and the therapist convinces the patient that therapy will help him, individual’s reaction is assumed to have helped.
b)    Important concept in clinical trials.
c)    Blind study–the patient does not know which treatment he will receive–placebo or not. Double blind study – neither patient nor doctor knows who is receiving the placebo.  This tries to lessen the effects of a placebo.