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Current Misuse of the Factorial Methods

Published online by Cambridge University Press:  01 January 2025

L. L. Thurstone
L. L. Thurstone*
Affiliation:
University of Chicago
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Abstract

Papers involving factorial methods appearing in current literature often misuse factorial methods. These meaningless results are reached because of neglect of certain conditions basic to factor theory. The conditions are:

  1. (1) The number of basic factors must be smaller than the number of tests.

  2. (2) The diagonals of the correlation matrix must be regarded as unknown.

  3. (3) The axes must be rotated into a simple configuration.

  4. (4) Each factor must be overdetermined by appearance in several tests.

  5. (5) Tests should have simple factorial composition.

Type
Original Paper
Information
Psychometrika , Volume 2 , Issue 2 , June 1937 , pp. 73 - 76
Copyright
Copyright © 1937 The Psychometric Society

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