A score obtained from a general mental ability test is as good a predictor of job performance as is a composite score obtained from a test of specific abilities using multiple scales.

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Research has shown that general mental ability (often measured by IQ or similar tests) is a strong predictor of job performance across a variety of occupations. It tends to be as effective, if not more so, than composite scores from tests of specific abilities because it reflects the capacity to learn, solve problems, and understand complex instructions, which are critical components of most jobs.

A Score Obtained from a General Mental Ability Test Is