In order to choose questions for a final version of a test, the examiners created a graph with difficulty on one axis and discriminability on the other. The examiners should use the questions that
a. all above the .50-point on the discriminability axis.
b. fall below the .50 point on the discriminability axis.
c. fall between .30 and .70 on difficulty and above .30 on discriminability.
d. fall above the .50 point on discriminability and difficulty.
c
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Perry and Raquel are both being treated for alcohol dependence with medication. Perry's medication makes him vomit if he drinks after taking it. Raquel's medication reduces her craving for alcohol. Most likely, Perry is taking __________, while Raquel is taking __________.
A. methadone; Naltrexone B. Naltrexone; methadone C. methadone; Antabuse D. Antabuse; Naltrexone
Dr. Widner is studying children's physical size worldwide by comparing the size of 8-year-olds in several countries, including Burma, Vietnam, Australia, the United States, and Canada. Dr
Widner can expect to find around a _____-inch gap between the smallest and the largest children. A) 3 B) 5 C) 7 D) 9