Procedures for Estimating Magnitude of Effects
- 1 January 1973
- journal article
- Published by Taylor & Francis in The Journal of Psychology
- Vol. 83 (1) , 151-161
- https://doi.org/10.1080/00223980.1973.9915603
Abstract
A review is provided of methods that estimate the magnitude of effects within experimental designs. Intraclass correlation type procedures are appropriate with any ANOVA model. Friedman's r m and Cohen's power analysis apply to many non-ANOVA type situations, but only to the Fixed Effects ANOVA design. The Gaito utility procedure has two advantages over other intraclass correlation type measures: the coefficients sum to unity (or to 100%), and coefficients for error components are obtained.Keywords
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