Dr. Abdul wants his research findings to be representative of the students at State U. He makes sure that every student has an equal chance of being a participant, thereby ensuring that he has done __________ sampling.
A. biased
B. operational
C. random
D. representative
Answer: C
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One important element in the development of social phobias may be a biologically-based preparedness to fear
a. large crowds. b. faces that appear angry or rejecting toward us. c. the body posture of people who are seen as important. d. unrelated persons more than biologically related persons.
Sleep apnea is a sleep disorder in which a person:
a. has difficulty initiating or maintaining sleep b. is excessively sleepy and often catnaps during the day c. repeatedly stops breathing during sleep d. wanders about while still sleeping
In any given year, approximately _____ percent of men and _____ percent of women are diagnosed with depression
a. 7, 12 c. 10, 10 b. 12, 7 d. 5, 12
The IUD is now regarded as a relatively safe method of contraception
a. True b. False