Some Determinants of the Difficulty of Non-Verbal Classification Items

Genetic Psychology Monographs

The Science News-Letter · 1926 · 3.7K citations

Journal on Educational Psychology

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Education, Educational Psychology, Pedagogy +1

The European Red Mite

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Veterinary Medicine, Entomology, Veterinary Parasitology +5

BRITISH JOURNAL OF PSYCHOLOGY

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Social Sciences, Behavioral Sciences, Psychology +2

The Nature of "Intelligence" and the Principles of Cognition.

Raymond H. Wheeler, C. Spearman · The Journal of Philosophy · 1924 · 698 citations

Social Sciences, Behavioral Sciences, Psychology +10