Mandated multicultural education in Iowa grew out of a strong commitment to education, a large influx of Southeast Asians, and a concern for the homogeneous nature of educational materials. The mandate stated that the Iowa Board of Education was responsible for the design, implementation, and evaluation of a multicultural/nonsexist education program by 1984. Tangential to the program, teachers were required to take a 45-hour human relations course focusing on self awareness, values, multicultural and nonsexist education, presentations by minority groups, and development of methods and materials for classroom implementation. To investigate the effectiveness of the mandate and the human relations course on teacher knowledge, teacher attitude, and teacher behavior, course participants completed a course evaluation, the Attitude Toward Sex Role Scale, and a 1-year follow-up questionnaire on implementation. An analysis of the results showed that no significant gains appeared for either attitude or knowledge. However, behavior did appear to change, in that 1 year after training, 70 percent of the teachers were still using the materials they had developed. Faulty administration, inadequate guidelines, and a lack of real support for the program from various official levels of education may explain the lack of significant gains and the image of the mandated program as a boondoggle. However, final analysis of program effectiveness must be based on student attitudes and counselor effectiveness in dealing with minority students. (The course evaluation form, the Attitudes Toward Sex Role Scale, and the response totals on the follow-up questionnaire are appended.) (BL)