A descriptive study typically would be used for
a. A comparison of two antianxiety drugs
b. The evaluation of the results of a new medical treatment
c. A comparison of two kinds of sampling methods
d. Documentation of a cluster of kaposi's sarcoma cases
e. Evaluation of the effects of self-instruction versus lecture on anemia
Answer: d. Documentation of a cluster of kaposi's sarcoma cases
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Which drug is sometimes offered as a substitute for opiates such as heroin?
a. Naloxone b. Ritalin c. Prozac d. Methadone
The research on gender comparisons in altruism shows that
a. the conclusions about this topic depend on the specific kind of altruism that is examined. b. men are typically more altruistic than women when the situation does not involve danger. c. men are somewhat more likely than women to be organ donors. d. social factors cannot explain why gender differences are found for some kinds of altruism, but not for other kinds.
Drugs that depress the activity of the central nervous system are known as _____
a. stimulants b. sedatives c. hallucinogens d. GABAs
Children typically are able to think about objects being simultaneously members of two classes, one being more inclusive than the other, beginning at about ages ______
a. 1 to 2 c. 5 to 6 b. 3 to 4 d. 7 to 8