This report presents data collected about the impact of the Research Utilizing Problem Solving (RUPS) instructional system on the classrooms of teachers trained in two RUPS workshops, which were part of the Improving Teaching Competencies Program at the Northwest Regional Educational Laboratory. The report is divided into four chapters, the first of which describes the RUPS action-research model, as well as the history, objectives, and components of this instructional system. The second chapter briefly outlines the impact study/outcome evaluation; describes the evaluation procedures, methodology, instruments and data analyses; and presents the relevant evaluation questions. The third chapter presents and discusses the results of the impact study, and the fourth chapter summarizes the findings and results. Appended are (1) stages of evaluation and product development of the Improving Teaching Competencies Program; (2) instruments used in the RUPS evaluation study; (3) a discussion of the psychometric evaluation of the problem solving orientation questionnaire; (4) descriptions and psychometric data for climate scales used in the evaluation of RUPS, Interpersonal Influence, and Group Process Skills; (5) uncorrelated t-values for RUPS posttraining and the followup questionnaire; and (6) responses to the followup questionnaire. A summary of the outcome evaluation report is also included. (RC)