This study investigated changes among Four H Club leaders after participation in a short human relations course, as well as in club members' growth and development following application by their leaders of the training received. Participants (30 adult leaders and 200 members) were divided into experimental and control groups. Adults in the control group took a short course in local government. Total teaching contact time (five months) and group interaction were the same for both groups of leaders. A personal checklist and the Self-Portrait were administered to all leaders before and after training; a simplified version was used with club members. Compared to control subjects, adults in the experimental group gained significantly on personality, level of achievement, and acceptance of others, while members of clubs led by them showed significantly greater gains in "desirable positive behavior" and in favorable self-evaluation. (author/ly)