Broader autism phenotype and couple interactions in parents of children with autism

Relatives of individuals with autism spectrum disorder, including parents, evidence an increased rate of broader autism phenotype. The goal of this study was to evaluate the association between actor (one’s own) and partner (their partner’s) broader autism phenotype and the self-reported, observed, and physiological (i.e. electrodermal reactivity) markers of the quality of videotaped couple problem-solving interactions in 158 couples, who had a child with autism spectrum disorder (aged 5–12 years).

The mean age of mothers was 39.79 (standard deviation = 5.06) years and the mean age of fathers was 41.77 (standard deviation = 6.02) years for fathers, and 36.6% of parents did not have a college degree. Actor–partner interdependence models, using structural equation modeling in analysis of moment structures, were conducted. Results indicated that parent broader autism phenotype was positively related to adverse couple problem-solving interactions across all measurement methods (observed codes, self-reported affect, and electrodermal reactivity).