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Experimental Aging Research
An International Journal Devoted to the Scientific Study of the Aging Process
Volume 1, 1975 - Issue 1
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Methodological comment

Misuse of analysis of covariance in aging research and some partial solutions

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Pages 121-125 | Received 03 Feb 1975, Accepted 23 Apr 1975, Published online: 27 Sep 2007
 

Abstract

Geron-tological researchers are reminded of the inappropriateness of analysis of covariance wherein the covariate is correlated with the independent variable, typically age. Two partial solutions are suggested that deal with the confounding of age effects with such uncontrolled variables as, for example, initial ability level or level of education.

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