The purpose of this study was to evaluate the effectiveness of Social Thinking® Social Behavior Mapping (SBM) on adolescents with autism spectrum disorder. A pretest-posttest control group design with matched sampling was used. There were 22 participants between the ages of 13 and 17 who were matched by age and IQ and then were randomly assigned to either an intervention group or to a treatment-as-usual group. Results revealed that participants made significant improvements on the SBM rating scale scores and participant-reported scores on the Social Skills subscale of the "Social Skills Improvement System" (SSIS; Elliott & Gresham, 2008) Rating Scales. There were no significant findings on the parent-reported scores on the SSIS Social Skills subscale or on the direct observation measures. [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://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]