Abstract
Statistical models and expected mean squares [E(MS)] are important concepts that facilitate the extensive use of analysis of variance designs. These concepts were developed in the basic statistics area from 1939 through the 1950s. They were introduced into psychological statistics during the late 1950s and have been useful in attacking some statistical problems. Also, they simplify the teaching of ANOVA designs.
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The first author would like to express his gratitude to Joseph Albert Greenwood for introducing him to mathematical models and expected mean squares early in his career as a psychologist. Also we want to thank Joseph Greenwood, Leslie Atkinson, and Caroline Davis for reading and commenting on an earlier version of this paper.
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Gaito, J., Shermer, P. Expected mean squares in psychological statistics: A brief history. Bull. Psychon. Soc. 23, 513–516 (1985). https://doi.org/10.3758/BF03329869
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DOI: https://doi.org/10.3758/BF03329869