Detecting unit of analysis problems in nested designs: statistical power and Type I error rates of the F test for groups-within-treatments effects.

A study was conducted to provide educational researchers with empirical estimates of the Type 1 error rate and statistical power of the F test of the classrooms-within-treatments effect in the nested analysis of variance model. The findings revealed that the test for groups within treatments did no...

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Bibliographic Details

Published in:	Educational & Psychological Measurement Vol. 56; pp. 215 - 232
Main Authors:	Kromrey, Jeffrey D., Dickinson, Wendy B.
Format:	Article
Published:	Sage Publications Inc. April 1996
Subjects:	Analysis of variance Effect sizes (Statistics) Experimental design Statistical power analysis
Online Access:	View this record in EBSCOhost