To measure the validity of a psychological test, what might an investigator try to determine?
a. How many psychologists use the test and consider it helpful
b. How many of the items on the test are easy, intermediate, or difficult
c. How consistent people's scores are from test to retest
d. How well the scores predict some other behavior
d
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One advantage of magnetic resonance imaging (MRI) over the computed tomography (CT) scan is that the MRI __________.
A. is not an invasive procedure B. provides better differentiation and clarity C. measures the metabolic processes of the brain D. does not require a claustrophobic cylinder-shaped machine
Poverty explains _____ in health risks and outcomes become different ethnic groups
a) all of the differences b) only the differences between Whites and Hispanics c) only part of the differences d) none of the differences