ERIC Number: EJ383261
Record Type: CIJE
Publication Date: 1988
Reference Count: 0
Quick Power Estimates Incorporating the Joint Effects of Measurement Error and a Covariate.
Rogers, W. Todd; Hopkins, Kenneth D.
Journal of Experimental Education, v57 n1 p86-94 Fall 1988
Formulas are provided for estimating statistical power of a test of significance for the difference among means under a variety of conditions. A table for quick power estimates that require no computation for comparing two means in analysis of variance and analysis of covariance is included. (TJH)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A