How do researchers calculate the discrimination index?
a. They calculate the difference between the percentage of upper performers and the percentage of lower performers who responded correctly.
b. They calculate the percentage of test takers who answered the item correctly.
c. They compare the percentage of test takers who answered the item correctly by demographic group.
d. They develop a matrix that contains the results of the item analyses for each item and calculate a score by adding the matrix columns.
a. They calculate the difference between the percentage of upper performers and the percentage of lower performers who responded correctly.
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Research suggests that procrastination is problematic. Nonetheless, a more controlling orientation epitomized by tackling tasks head-on can be problematic too in that it can
a. prevent problem-focused coping. b. lead to development of a Type B personality. c. lead to decrements in attention. d. be physiologically taxing.
Good decision making is ____
a. ?a skill that can be taught b. ?a product of nature over nurture c. ?not predictive of real world behavior d. ?an innate skill
A lymphatic system was discovered recently in which part of the nervous system?
A. Circle of Willis B. central canal C. ventricles D. meninges
Which is experienced by men but not women?
a. All stages in the sexual response cycle are experienced by both sexes. b. orgasm c. plateau d. refractory period