An early practitioner of hypnosis, who believed it was caused by animal magnetism, was

How many genes have been shown to play a role in determining one's height?

a. only two b. four c. appoximately 10 d. almost 200

One way to overcome a limitation of the case study method is to __________

A) standardize the types of treatment methods used B) vary the number of sessions used C) generate conclusions as to the cause of a disorder in a case report D) vary the levels of the independent variable