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The use of “differential regression” in analysis of variance

Published online by Cambridge University Press:  27 March 2009

Walter A. Hendricks Junior Biologist
Walter A. Hendricks Junior Biologist
Affiliation:
(Bureau of Animal Industry, U.S. Department of Agriculture, Washington, D.C.)
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Extract

The application of a principle of “differential regression”, which is of value in the statistical treatment of some types of experimental data, is illustrated. Briefly stated, the principle involves the use of a separate regression coefficient for each subclass of observations when correcting these observations for the influence of variability in a correlated variate, instead of the use of an average net regression coefficient as employed in the usual variance and covariance analysis.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 25 , Issue 2 , April 1935 , pp. 258 - 263
Copyright
Copyright © Cambridge University Press 1935

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References

REFERENCES

Crampton, E. W.Analysis of the comparative feeding trial by the variance and covariance methods. J. Nutrit. (1934), 7 (5), 497–533.Google Scholar
Fisher, R. A.Statistical Methods for Research Workers, 4th ed. (1932). Edinburgh and London: Oliver and Boyd.Google Scholar
Yates, F.The principles of orthogonality and confounding in replicated experiments. J. agric. Sci. (1933), 23, 108–45.Google Scholar