Self-paced, individualized student and teacher workbooks were designed to improve the self-concept and motivation levels of vocational students. The program was based on the correlation between self-concept and school achievement. The program was field tested with 41 Job Corps students from the Gary Job Corps Center in San Marcos, Texas, and their instructors. Three other Job Corps classes in identical occupational fields acted as the untreated control groups. The researchers used pretests and posttests over a six-week period with the Tennessee Self-Concept Scale and the Nowicki Strickland Adult Locus of Control Test to collect data for statistical analysis. The results revealed that motivation-trained students showed significant improvement in self-concept during the six-week period. The results from a nested experimental field design yielded significance only at the 75 percent confidence level, but an un-nested analysis of variance showed significance at the 90 percent level; analysis of covariance showed significance at the 95 percent level. The subjective data gathered from test participants also showed very positive support of the program. It was recommended that the use of the materials be continued, revised, and expanded. (KC)