The final phase of human clinical trials usually involves
A) placebo controls.
B) double-blind procedures.
C) yoked controls.
D) all of the above
E) both A and B
Answer: E
You might also like to view...
Ninety-five percent of psychologists believe in God or some higher power
Indicate whether the statement is true or false
Harry Harlow's research on the development of attachment in monkeys with surrogate mothers demonstrated the importance of which of the following factors?
a. contact comfort b. eye contact c. drive-reduction functions d. hunger and feeding
Eric, a young professional, has been married for four years and always takes care of his wife and children. He strives for intimacy, his personal growth, and to contribute to his community. In the context of materialism, which of the following goals is exemplified by Eric in this scenario?
A. superordinate goals B. incompatible goals C. extrinsic goals D. intrinsic goals
Marsha watches her mother bathe the new baby. The next morning she gets her doll and a pail of water and bathes her "baby." Marsha is showing
A. deferred imitation. B. centration. C. conservation. D. symbolic-function.