People with mild to moderate intellectual disabilities require extra supports to have fulfilling life experiences. The problem in practice experienced by the postsecondary school was the nature and extent of supports required for individuals with intellectual disabilities to fully participate in daily life activities. The purpose of this study was to assess the effectiveness of a postsecondary program on developing life skills for students with intellectual disabilities. There was one formal instrument utilized. The "Supports Intensity Scale - Adult Version" is a standardized assessment tool designed to measure the pattern and intensity of supports that a person aged 16 years and older with intellectual disability requires to be successful in community settings. This single subject research study measured the statistically significant difference between pretest and posttest measures utilizing a paired t test. The study specifically examined the effects of curriculum intervention on levels of support with select social activities. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]