A social skills training program for improving student behavior in art and music classes and in unstructured situations was developed and implemented during the second quarter of the 1993-1994 school year in two schools in Elgin, Illinois. The targeted classes included grades six through eight at St. Laurence School (part of the Rockford Catholic Diocese school system) and fifth grade at McKinley School (Elgin School District U-46). Pre-assessment data were gathered through: a questionnaire to parents and teachers that focussed on student behavior; lunch room supervisors' checklists; number of detentions issued; and the Index of Personality (IPC) administered to students. The 9-week intervention program consisted of seven major topics: understanding myself; values; communicating with others; goal setting; risk-taking choices; and handling difficult situations. Post-assessment activities consisted of a review of detentions issued in September through January of the 1993-1994 school year and readministration of the IPC. The intervention program was successful in decreasing the number of detentions and inappropriate behaviors, as well as increasing teacher awareness and dialogue. Data showed significant modification of the behaviors of students in grades five, six, seven, and eight, though modification of the program for grades five and six is suggested since the behaviors of those students did not change to the same extent as the seventh and eighth grade students. Appended are copies of questionnaires and program materials. Contains 23 references. (TM)