Draw two overlapping circles to represent the shared variance between A (the treatment or group membership variable)
Question:
Use different versions of these diagrams to illustrate that the effect of including the covariate can be primarily to reduce the SSerror, or primarily to reduce SSA.
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Related Book For
Applied Statistics From Bivariate Through Multivariate Techniques
ISBN: 9781412991346
2nd Edition
Authors: Rebecca M. Warner
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