Standardized tests of intelligence are based on the assumption that
a. IQ scores are normally distributed in the population.
b. most individuals differ from the mean score by fifteen points.
c. IQ scores are an accurate measure of intelligence.
d. the standard deviation of IQ scores is one hundred.
Question 2
In Clara's honors research project on the effect of video games on aggression in children, the measure of aggression was the number of times physical contact occurred among the children being observed. Clara's measure of aggression is an example of
a. the operational definition of a variable. c. the reliability of a measure.
b. the validity of a measure. d. a control variable.
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