The drugs with which people are most likely to develop psychological (behavioral) dependence are generally also found to have
A. stimulant effects.
B. pain-relieving effects.
C. sedative effects.
D. reinforcing effects in laboratory animals.
Question 2
The occurrence of a withdrawal syndrome is evidence of
A. physical dependence.
B. chronic behavioral disorder.
C. an antigen-antibody reaction.
D. craving.