ERIC Number: EJ371392
Record Type: Journal
Publication Date: 1987
Detecting Treatment Effects in Educational Research.
Keselman, Joanne C.; Keselman, H. J.
Educational and Psychological Measurement, v47 n4 p903-10 Win 1987
The power to detect main and interaction effects in a factorial design was determined when the Bonferroni method was used to control the overall rate of Type I error. For sample sizes typical of educational research, the power of this procedure was considerably less than that of recommended standards. (TJH)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A