“Parallel Proportional Profiles” and other Principles for Determining the Choice of Factors by Rotation
- 1 December 1944
- journal article
- research article
- Published by Cambridge University Press (CUP) in Psychometrika
- Vol. 9 (4) , 267-283
- https://doi.org/10.1007/bf02288739
Abstract
The choosing of a set of factors likely to correspond to the real psychological unitary traits in a situation usually reduces to finding a satisfactory rotation in a Thurstone centroid analysis. Seven principles, three of which are new, are described whereby rotation may be determined and/or judged. It is argued that the most fundamental is the principle of “parallel proportional profiles” or “simultaneous simple structure.” A mathematical proof of the uniqueness of determination by this means is attempted and equations are suggested for discovering the unique position.Keywords
This publication has 3 references indexed in Scilit:
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- On the Interpretation of Common Factors: A Criticism and a StatementPsychometrika, 1943
- The description of personality. I. Foundations of trait measurement.Psychological Review, 1943