“Parallel Proportional Profiles” and Other Principles for Determining The Choice of Factors by Rotation  

Oleh:

Cattell, Raymond B.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 9 no. 4 (Dec. 1944), page 267-283.
Topik: Parallel Proportional Profiles; Functional Unities; Satisfactory Rotations; Fundamental Principle; Mathematical Treatment
Fulltext: “Parallel Proportional Profiles” and Other Principles for Determining The Choice of Factors by Rotation.pdf (1,009.22KB)

Isi artikel

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.

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