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A Nomogram for Factor Analysts

Published online by Cambridge University Press:  01 January 2025

P. D. Deuel
P. D. Deuel*
Affiliation:
University of California
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Abstract

When a new reference vector is chosen graphically from the plane of two old ones, its direction cosines as well as the projections of the tests on it are most easily computed by applying certain multipliers d and Sd to quantities which are already known. The nomogram quickly supplies d, after S has been read from the graph.

Type
Original Paper
Information
Psychometrika , Volume 21 , Issue 3 , September 1956 , pp. 291 - 294
Copyright
Copyright © 1956 The Psychometric Society

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Footnotes

*

Suggestions by Norman Livson, Thomas Nichols, and Karyl Atherton have been incorporated in the nomogram. Mrs. Atherton also checked the necessary computations. In addition, I am obligated to Katherine Eardley, scientific illustrator, for her care in lettering and inking the original.

References

Thurstone, L. L. Multiple-factor analysis, Chicago: Univ. Chicago Press, 1947Google Scholar