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:
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(1)
The number of basic factors must be smaller than the number of tests.
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(2)
The diagonals of the correlation matrix must be regarded as unknown.
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(3)
The axes must be rotated into a simple configuration.
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(4)
Each factor must be overdetermined by appearance in several tests.
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(5)
Tests should have simple factorial composition.
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Thurstone, L.L. Current misuse of the factorial methods. Psychometrika 2, 73–76 (1937). https://doi.org/10.1007/BF02288060
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DOI: https://doi.org/10.1007/BF02288060