All of the following are Campbell and Stanley threats to internal validity except:
A) selection
B) regression
C) partialing
D) instrumentation
E) extraneous events
Ans : C
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Which of the following objects is nonbiodegradable?
a. Newspapers. b. Plastic milk cartons. c. Egg shells. d. Potato peels.
The average score on most psychological tests is ____
a. 10 b. 50 c. 100 d. 1000
The References section is essentially the same for quantitative and qualitative research reports.
a. True b. False
Professor Martin conducts a math test. He calculates the scores on all even-numbered items and compares them with the scores on all odd-numbered items. He finds that the scores from the odd-numbered items are vastly different from the scores on the even-numbered items. Which of the following statements is true about the math test?
A. The test has low test-retest reliability. B. The test has high predictive validity. C. The test has high concurrent validity. D. The test has low split-half reliability.