Further evidence is given on validity in the conventional and retrospective pretest-posttest designs using self-report measures as outcome criteria. Experimental training in Seeing Problems Strategy was effective in improving task performance. The retrospective self-report approach reflected the change. Subjects initially overestimated their…

Reviews the role of statistical significance testing, and argues that dominance of such testing is dysfunctional because significance tests do not provide the information that many researchers assume they do. Possible reasons for the persistence of statistical significance testing are discussed briefly, and ways to moderate negative effects are…

Given the increased data-based capabilities of educational institutions, educational researchers should have more opportunities to use sequential designs. This paper illustrates how to analyze educational data from a cohort-sequential design. University data pertaining to grade inflation were analyzed using a variant of multiple regression.…

The response-shift phenomenon is demonstrated in a typical classroom setting. Retrospective pre-ratings in self-report instruments are shown to yield more accurate estimates of pre-instruction knowledge than simple pre-ratings. (Author/CM)