The correlation between the scores on a test of job aptitude and a measure of job proficiency is + .50 among 500 employed workers. The 50 workers who scored lowest in job proficiency and the 50 who scored highest are separated from the remainder, combined into one group, and recomputed. We should expect it to be
a. about the same as the first coefficient.
b. higher than the first coefficient.
c. lower than the first coefficient.
d. invariable a negative value.
e. different from the first coefficient, but we cannot predict if it would be higher or lower.
Ans: b
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