There is a growing trend of using paraprofessionals to augment the education of students with disabilities. Paraprofessionals are often the least educated and trained member in a classroom, yet can be asked to provide assistance to students with complex needs. Students with disabilities require the use of practices that are grounded in scientific research in order to be included as much as possible in the regular education curriculum. This study sought to examine the effects of a multi-component training package, behavior skills training, on three paraprofessionals' use of a positive behavior support strategy. A single-subject research design was used to measure the effects of the training as well as the effects of differential reinforcement of alternative behavior on students' rates of challenging and alternative behaviors. Results indicated that behavior skills training had a positive impact on the paraprofessionals' use of the strategy. All three paraprofessionals rated their experience with the training and the strategy as favorable. [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.]