Challenging the “ Law of Diminishing Returns ”

@inproceedings{Fogarty2006ChallengingT,
  title={Challenging the “ Law of Diminishing Returns ”},
  author={Gerard J. Fogarty},
  year={2006}
}
"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 power among the higher ability levels. In the first study described in this paper, tasks that provide… CONTINUE READING
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