The Stepping Stones Positive Parenting Program (Stepping Stones Triple P; SSTP) was designed for caregivers of children with disabilities to improve select parental variables such as parenting styles, parental satisfaction, and parental competency, and to reduce parental stress and child problem behaviors. This study focused on SSTP training for caregivers whose children were diagnosed with autism spectrum disorder (ASD). Eighteen caregivers of children diagnosed with ASD who attended a university-based autism center participated in a quasi-experimental, pretest-posttest control group study. Results revealed a statistically significant improvement for caregivers in the intervention group on the Parenting scale total score and also on this measure's Laxness subscale from pretest to posttest time periods. There was also a significant improvement for caregivers in the intervention group on the Parenting scale Verbosity subscale from pretest to delayed posttest. Implications of the study for school psychologists are identified and directions for future research are specified.