The strength of g at different levels of ability: Have Detterman and Daniel rediscovered Spearman's “law of diminishing returns”?

"General Intelligence," Objectively Determined and Measured

C. Spearman · The American Journal of Psychology · 1904 · 6.2K citations

Education, Behavioral Sciences, Psychology +8

The European Red Mite

Birger R. Headstrom · Science · 1928 · 1.8K citations

Veterinary Medicine, Entomology, Veterinary Parasitology +5

Correlations of mental tests with each other and with cognitive variables are highest for low IQ groups

Douglas K. Detterman, Mark Daniel · Intelligence · 1989 · 352 citations

Education, Educational Assessment, Psychology +12

The nature of the black–white difference on various psychometric tests: Spearman's hypothesis

Arthur R. Jensen · Behavioral and Brain Sciences · 1985 · 284 citations

Social Sciences, Educational Assessment, Psychology +12

Some Issues in the Theory of “g” (including the Law of Diminishing Returns)1

C. Spearman · Nature · 1925 · 40 citations · Full text

Social Sciences, Economics, Microeconomics +5