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Author Notes:

Address correspondence to: Christopher Beck (christopher.beck@emory.edu).


Interactions Are Critical


Journal Title:

CBE-Life Sciences Education


Volume 13, Number 3


, Pages 371-372

Type of Work:

Article | Final Publisher PDF


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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© 2014 C. W. Beck and N. G. Bliwise. ASCB®” and “The American Society for Cell Biology® are registered trademarks of The American Society of Cell Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License ( http://creativecommons.org/licenses/by-nc-sa/3.0/), which permits distribution, public display, and publicly performance, making multiple copies, distribution of derivative works, provided the original work is properly cited. This license requires derivative works be licensed under the same terms or compatible terms as the original work, credit be given to copyright holder and/or author, copyright and license notices be kept intact. This license prohibits exercising rights for commercial purposes.

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