This study sought to determine the effectiveness of an instructional program for developing creative thinking, a positive self-concept, and leadership among intellectually and academically gifted elementary students in grades four, five, and six. The purposes of the study were to determine the effect of experimental treatment on test scores measuring creativity, self-concept, and leadership; to compare the performance of the moderately intellectually gifted with that of the highly intellectually gifted; to determine whether boys or girls benefited more from instruction; and to determine whether fourth-, fifth-, or sixth-grade students achieved greater test gains after experimental treatment.