Effects of social skills training on social responsiveness of people with Autism spectrum disorder: a systematic review with meta-analysis

Social skills training (SST) is a widely proposed intervention to address social impairments in autism spectrum disorder (ASD). SST employs a series of activities aiming to enhance pro-social behaviors. A promising approach to evaluate SST's effects lays on social responsiveness (SR) indicators, which are related to the capacity to respond appropriately to social stimuli. Despite the widespread use of SST, there are no integrative studies evaluating its effects on the SR of ASD people. We performed a systematic review with meta-analysis investigating the effects of SSTs in SR indicators of individuals with ASD. PRISMA guidelines were considered to search through EMBASE, PubMed, PsycINFO, and Scopus without timeframes or language restrictions. Randomized controlled trials (RCTs) were included only. Jamovi (version 1.6) was used to perform the meta-analysis with the standardized mean difference (SMD) between pre and post-intervention scores (triangle) as the outcome measure. Twenty-seven papers composed the review and 25 the meta-analysis. The population was predominantly male (80%), with a mean age of 13.03 years. Interventions were mostly conducted in group settings. Meta-analysis indicated the set of interventions as capable of improving SR indicators of ASD people (SMD = 0.57 (CI 95% 0.46-0.67; p < 0.0001). Although our findings cannot support PEERS program as quantitatively superior to other programs, its methodological consistency, treatment adherence and involvement of parents are noteworthy. SST appears to be a viable, versatile, and easily implementable intervention to improve SR of individuals with ASD.