Factorial ATI Analysis
Richard L. Tate · Florida Educational Research Association · 1981
Cronbach (1975) has argued that the currently prevalent research strategy based on hypothesis testing is wasteful for the study of interactions among instructional treatments and student aptitudes.This strategy dictates that only those effects which are statistically significant should be included in final models and descriptions.Power calculations in Cronbach and Snow (1976, pp.55-57), however, indicate