| Abstract: | Comments on the article by R. L. Hagen (see record 1997-02239-002) defending the logic and practice of null hypothesis statistical testing (NHST). It is argued that model fitting provides an approach to data analysis that is more appropriate to the cognitive needs of the researcher than is NHST. Model fitting combines the NHST ability to falsify hypotheses with the parameter-estimation characteristic of confidence intervals in an approach that is simpler to learn, understand, and use. Effect size estimation is central to the approach, and power calculations are vastly simplified relative to NHST. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
