A number that describes a "typical score" around which other scores fall is called a measure of
a. variability.
b. central tendency.
c. normality.
d. cohesion.
ANSWER: b
Psychology
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When the correlation between the matching variable and the dependent variable is high, the error term for the correlated t should be lower than it otherwise would be.
a. true b. false
Psychology
According to statistics reported in the text, what percentage of U. S. teenagers have used alcohol by the end of high school?
a. 30% b. 55% c. 70% d. 92%
Psychology