The General Factor in Spearman's Theory of Intelligence


I HAVE recently undertaken an investigation of the theory of ‘factors’ from a mathematical point of view. This work is now complete and I hope to publish it shortly in full. The conclusions in brief are that, with certain reservations, the theorems relied on by psychologists are correct. They are, further, independent of the theory of probability: that is to say, no questions of distribution arise until we come to applications.

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HEYWOOD, H. The General Factor in Spearman's Theory of Intelligence. Nature 127, 306–307 (1931).

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