Forty-nine Cache Valley residents, between the ages of 18 and 45, who volunteered to participate in an assertion training class were assigned to one of seven groups. Subjects were administered pre- and posttests and a two month follow-up evaluation. Measures included Rotter's Internal-External Locus of Control Scale, the Rathus Assertive Scale, and the Berger Self-Acceptance Scale. The results obtained indicate that self-acceptance and assertiveness changed as a result of assertion training and that these changes were maintained at follow-up. No difference between internals and externals was observed as a result of semi-structured assertion training.