Breast milk is almost always the best food for newborns and is recommended for at least the first ________ months.
A. 6
B. 12
C. 3
D. 9
Answer: A
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Dr. Wilkins randomly assigns subjects to one of three groups
He is interested in the effects of caffeine on anxiety levels. He gives subjects in the first group an extra two cups of coffee a day for six months. The second group receives an extra two cups of decaffeinated coffee a day for the same time period, while the control group is not given either regular or decaffeinated coffee. By providing one group with decaffeinated coffee, Dr. Wilkins is trying to account for which potential element of the experiment? A) A control condition B) The Rosenthal effect C) The placebo effect D) The artificial condition
Kim only has one or two alcoholic drinks when she goes out to a restaurant with her friends a few times a month. Kim's pattern of drugtaking behavior would be classified as
a. experimental. b. compulsive. c. situational. d. social-recreational.
Sigmund Freud inferred that one's personality consists of three components, the id, ego, and superego, based on interviews with his patients. In constructing theories, these kinds of inferences are referred to as
a. introspection. b. observation. c. constructs. d. anthropomorphizing.
Dwayne shows little interest in his girlfriend except when he perceives that she is becoming interested in somebody else. His behavior is best described as an example of a(n) _____
A) ?anticipatory contrast effect B) ?negative contrast effect C) ?positive contrast effect D) ?discriminatory contrast effect