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The Square Root Method and Multiple Group Methods of Factor Analysis

Published online by Cambridge University Press:  01 January 2025

Harry H. Harman
Harry H. Harman*
Affiliation:
Personnel Research Branch, the Adjutant General's Office*
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Abstract

The square root method for the solution of a set of simultaneous linear equations or the reduction of a matrix has been known for some time under a variety of names. Because of its usefulness in statistical work, especially in factor analysis, the square root method is presented in general terms and an example given. Several independently developed “multiple group methods” for factor analysis are compared and synthesized. Their fundamental concepts are set forth and an appropriate system of notation developed. Detailed computational procedures are outlined, and the square root method is emphasized as a computing aid in multiple group analysis.

Information

Type
Original Paper
Information
Psychometrika , Volume 19 , Issue 1 , March 1954 , pp. 39 - 55
Copyright
Copyright © 1954 Psychometric Society

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Footnotes

*

The opinions expressed in this paper are those of the author and do not necessarily reflect official Department of the Army policy. The author is now with The RAND Corporation, Santa Monica, Calif.

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