A deficit in social skills is a hallmark of individuals diagnosed with autism spectrum disorders (ASD); therefore, it is critical that treatment emphasize teaching social skills. Today, there are multiple strategies to teach social skills to individuals with ASD. One procedure is social skills groups (SSG). Social skills groups are opportunities for three or more individuals diagnosed with ASD to come together and learn specific social skills collectively. Researchers have demonstrated that SSG may be beneficial for individuals diagnosed with ASD; however, there remain several concerns that still must be addressed. This project will evaluate a 16 week behaviorally based SSG for young children diagnosed with ASD. Sixteen participants will be selected for the SSG and randomly divided into either a treatment group or a waitlist control group. A pretest-posttest control group design will be utilized to evaluate the overall increases in social behavior in the treatment group and to determine if there are differences between the two groups. Additionally, we will utilize a multiple baseline design across skills and replicated across participants to evaluate increases on specific social behaviors. Both the group and single subject designs will rely on extensive measurement to assess the generalization of skills in natural settings with typically developing peers. Results from this project will answer questions regarding the efficacy of SSG for individuals diagnosed with ASD.