Published in:
Open Access
01-12-2017 | Short report
Interrelationship between insistence on sameness, effortful control and anxiety in adolescents and young adults with autism spectrum disorder (ASD)
Authors:
Mirko Uljarević, Amanda L. Richdale, David W. Evans, Ru Ying Cai, Susan R. Leekam
Published in:
Molecular Autism
|
Issue 1/2017
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Abstract
Background
Both self-regulation and insistence on sameness (IS) are related to anxiety, which is a common feature of individuals with autism spectrum disorder (ASD). Here, we aimed to characterise the IS-self-regulation-anxiety interrelationship by investigating the potential contribution made by self-regulation, assessed via effortful control (EC), to the IS-anxiety relationship in a sample of adolescents and young adults with ASD.
Method
Seventy-one older adolescents and younger adults with ASD (49 males, 22 females; M
age = 18.71 years, SD = 2.51, range 14.42–24.81) completed the Adult Repetitive Behaviour Questionnaire-2, Effortful Control Scale of the Adult Temperament Questionnaire and the DSM-5 Dimensional Anxiety Scales.
Results
IS was associated with both EC (r = −.39, p = .001) and anxiety (r = .45, p < .001), and anxiety was in turn associated with EC (r = −.44, p < .001). To characterise the nature of this interrelationship, two mediation analyses were performed using the serial mediation model in PROCESS with 5000 resamples in bootstrapping. There was a significant indirect effect of EC on anxiety, through IS (b = −.06; BCa 95% CI [−.13, −.02]), and indirect effect on anxiety through EC (b = 1.62; BCa 95% CI [.59, 3.24]) with the mediators accounting for 29.07 and 26.04% of the total effect, respectively.
Conclusions
Our study provides the first exploration of the IS-anxiety-self-regulation link in ASD. The finding that lower levels of self-regulation are related both to anxiety and IS behaviours points to self-regulation as a viable intervention target for both anxiety and IS behaviours.