1. A control mental health workshop was set up in a public school system. A volunteer group of teachers and the administrative group of principals, assistant principals and heads of departments were separately exposed to 15-week 1 ½hour seminars on mental health under the guidance of a qualified psychiatrist.2. A control group was set up matching teachers as to age, sex, duration of service, and grade taught; also a control group of administrators from a neighboring community.3. All 4 groups were given the same battery of psychological tests before and after the seminars.4. Studies of the psychological test responses show that although there were statistically significant changes for the experimental group, these were also found in the control group.5. It should be noted that if the pre-and posttesting of the experimental groups were evaluated without control groups the results could have been interpreted as excellent.6. Further control studies are projected with varying size groups, different instructors, different methods of selecting participants, and varying the content of the lecture and discussion material.Abstract Teaser