What is the discrimination index?

A. a comparison of the scores of respondents by sex, race, or other personal characteristics
B. an index of how difficult each test item is
C. a comparison of high performer scores with low performer scores on each item
D. cumulative results from an item analysis yielding an overall score for the test


Ans: C

Psychology

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Administration of a drug that prevents the movement of Ca ++ ions across the neural membrane into the cell is likely to

a. increase neurotransmitter release. b. decrease the strength of the action potential. c. decrease neurotransmitter release. d. increase the strength of the action potential.

Psychology

If you were in marketing and wanted to conduct a global survey identifying the traits of people who would be most likely to buy luxury cars, which of Cattell's compilations of traits would be the most useful?

A. Source traits B. Surface traits C. Central traits D. Secondary traits

Psychology

________ first documented operant conditioning

Fill in the blank with correct word.

Psychology