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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.

Information

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