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Published online by Cambridge University Press: 01 January 2025
Edwin B. Wilson and Jane Worcester, Psychometrika, 1939, 4, 133–148.
The observation, “There seems to be a confusion in this matter on p. 60 of Kelley‘s Essential Traits of Mental Life,” is gratefully noted. The confusion is due to a regrettable slip which is rectified by dividing each y in the first four equations by its standard deviation.