We examined the relations of restricted and repetitive behaviors (RRB; insistence on sameness, repetitive sensory-motor, self-injurious behavior) to social skills overall and aspects that comprise social skills as measured by the VABS-II (coping skills, play/leisure time, interpersonal relationships) in 24- (n = 63) and 36-month old (n = 35), high-familial-risk toddlers with ASD. Hierarchical linear regression results indicated that repetitive sensory-motor was the best predictor of social skills overall. Secondary results indicated that all three RRB subtypes were associated with each subdomain of social skills; however, repetitive sensory-motor was the strongest and most consistent among these effects. While our results suggests a general negative relation of subtypes of RRB to aspects of adaptive social function, repetitive sensory-motor behaviors may be of particular relevance to the development of social skills during toddlerhood.
Bibliographical noteFunding Information:
This work was supported by grants from the National Institutes of Health under awards R01MH116961, P30HD03110, and R01HD05574; Autism Speaks, and the Simons Foundation. We wish to express our gratitude to IBIS families for continued participation in this research.
© 2021, The Author(s).
PubMed: MeSH publication types
- Journal Article