Comment on “Statistical Power with Group Mean as the Unit of Analysis”
- 1 June 1986
- journal article
- Published by American Educational Research Association (AERA) in Journal of Educational Statistics
- Vol. 11 (2), 161-169
- https://doi.org/10.3102/10769986011002161
Abstract
Barcikowski (1981) has provided tables for use in situations where unit (e.g., class or school) means are to be used as the unit of analysis. Apparently unrecognized by Barcikowski, and perhaps by the research community at large, is the fact that under the conditions specified for use of these tables (i.e., knowledge of the intraclass correlation), one would not generally wish to carry out analyses based on group means since a superior analytic strategy is available in this situation. This paper explicates this methodology.Keywords
This publication has 3 references indexed in Scilit:
- An Investigation of the Robustness of the t Test to Unit of Analysis ViolationsEducational and Psychological Measurement, 1983
- The Unit of Analysis: Group Means Versus Individual ObservationsAmerican Educational Research Journal, 1982
- Statistical Power with Group Mean as the Unit of AnalysisJournal of Educational Statistics, 1981