A researcher has conducted an experiment to test the effectiveness of a drug that she thinks will elevate the mood of depressed individuals. The results of a statistical analysis is that the experimental and control groups differ, but not by very much. This experiment may lack:
a. the proper motivation
b. scientific significance.
c. the proper methodology.
d. practical value.
B
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Indicate whether the statement is true or false
Research shows that by age 20, what percentage of U.S. youth have engaged in sexual intercourse?
A. 90 B. 82 C. 54 D. 77
In the United States, the federal government mandates ________ for new parents in companies with at least 50 workers.
A. 12 weeks of paid leave B. 12 weeks of unpaid leave C. 15 weeks of leave at 55 percent of prior earnings D. 15 months of leave at 80 percent of prior earnings
Face validity
a) cannot influence the usefulness of a test b) is typically examined in modern validity studies c) depends on subjective reactions of those who take the test d) depends heavily on objective data