The purpose of this study was to determine the effects of Maintaining Teaching Effectiveness, a staff development model, upon public school educators' attitudes toward various professional and personal factors. The techniques used for the project included a collegial support network and peer coaching. A total of 24 educators participated from November 1987 to May 1988. At the beginning and again at the conclusion of the study, attitude inventories were administered to all participants. Attitude surveys were also administered to students to determine their perception of their teachers' effectiveness. The mean scores of pretests and posttests were compared to determine the projects' effectiveness. The results indicated that the teachers were improving in their performance of the objectives of the program as indicated by the gain in posttest scores as compared to pretest scores. The program appears to have been effective in improving teacher attitude, enhancing collegial support, and in increasing the students' perception of their teachers' effectiveness. Statistical data from the study are included as well as a copy of the survey questionnaire. (Author/JD)