Confounding Covariates in Nonrandomized Studies [electronic resource] / R. Clifford Blair and Shlomo S. Sawilowsky.
Analysis of covariance (ANCOVA) is a data analysis method that is often used to control extraneous sources of variation in non-equivalent group designs. It is commonly believed that as long as the covariate is highly correlated with the dependent variable there is nothing to lose in using ANCOVA, ev...
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Format: | Electronic eBook |
Language: | English |
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[S.l.] :
Distributed by ERIC Clearinghouse,
1991.
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ED336412
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