The proportion of test takers that get a "good" item correct increases as a function of the
a. item characteristic curve.
b. total test score.
c. validity of the test.
d. item difficulty.
b
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Which of these is an example of something an epidemiologist would do?
a. encourage people with the flu to avoid alcohol b. study rates of alcoholism in urban versus rural areas c. investigate the effects of clothing preference on social communication d. study chromosomes to find abnormal genes associated with various diseases
Scaled scores on the WAIS-IV have a mean of ____ and a standard deviation of ____
a. 10; 3 b. 50; 10 c. 100; 15 d. 100; 16
Which treatment is sometimes used for severe depression when medication is not working?
A) cingulotomy B) anterior capsulotomy C) electroconvulsive shock treatment D) lobotomy
After narrowly avoiding a car accident, your arousal returns to a baseline state because of activity in the _____
a. sympathetic nervous system b. parasympathetic nervous system c. hypothalamus d. amygdala