Interactions are critical.

CBE Life Sci Educ

Department of Psychology, Emory University, Atlanta, GA 30322.

Published: May 2015

Although we agree with Theobold and Freeman (2014) that linear models are the most appropriate way in which to analyze assessment data, we show the importance of testing for interactions between covariates and factors.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4152198PMC
http://dx.doi.org/10.1187/cbe.14-05-0086DOI Listing

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