Book Review: The Law of Diminishing Returns
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چکیده
منابع مشابه
The Law of Diminishing Returns.
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"The Law of Diminishing Returns" (Spearman, 1927) states that the size of the average correlation between cognitive tasks tends to be relatively small in high ability groups and relatively high in low ability groups. Studies supporting this finding have tended to contrast very low ability subjects (IQ < 78) with subjects from higher ability ranges and to use tests that have poor discriminatory ...
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The lower average correlations among mental tests in groups of individuals of above-average IQ than is found in groups of individuals of below-average IQ implies a smaller general factor, or g, in the higherIQ group, a phenomenon Spearman called the ‘Law of Diminishing Returns’. This phenomenon was confirmed in six independent data sets based on three different test batteries. It implies that p...
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ژورنال
عنوان ژورنال: Bulletin of the American Mathematical Society
سال: 1926
ISSN: 0002-9904
DOI: 10.1090/s0002-9904-1926-04173-2