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The Calculation of Sums of Squares for Interactions in the Analysis of Variance

Published online by Cambridge University Press:  01 January 2025

Allen L. Edwards  and
Paul Horst
Allen L. Edwards
Affiliation:
The University of Washington
Paul Horst
Affiliation:
The University of Washington
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Abstract

A method is described for the calculation of the sum of squares for a second-order interaction. It is then shown that the method is general and can be used for the calculation of the sum of squares for any higher-order interaction.

Type
Original Paper
Information
Psychometrika , Volume 15 , Issue 1 , March 1950 , pp. 17 - 24
Copyright
Copyright © 1950 The Psychometric Society

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References

Goulden, C. H. Methods of statistical analysis, New York: Wiley, 1939.Google Scholar
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McNemar, Q. Psychological statistics, New York: Wiley, 1949.Google Scholar
Snedecor, G. W. Statistical methods 4th ed.,, Ames, Iowa: Iowa State College Press, 1946.Google ScholarPubMed