Relationship between repetitive behaviour and fear across normative development, autism spectrum disorder, and Down Syndrome

Published March 2017
Abstract
The present study had two aims: first to compare levels of restricted and repetitive behaviours (RRB) across two groups of typically developing (TD) children, and two disorders: Autism Spectrum Disorder (ASD) and Down syndrome (DS), and second to explore the relationship between fear and repetitive behaviours in these four groups. Parents of 41 offspring with ASD (Mage = 123.39 months, SDage = 27.67), 38 offspring with DS (Mage = 125.37 months, SDage = 45.71), 45 typically developing children matched to the mental age (MA) of the DS group (TD MA; Mage = 51.13 months, SDage = 22.1), and 42 chronological age (TD CA; Mage = 117.93 months, SDage = 22.91) matched TD children, completed measures of RRB and fear. ANOVAs revealed differences across the four groups on the RRB subscale scores: “Just Right” F(3,162) = 16.62, P 
Citation
Uljarević, M. & Evans, D.W. (2017). Relationship between repetitive behaviour and fear across normative development, autism spectrum disorder, and down syndrome. Autism Research, 10, 502-507. doi:10.1002/aur.1674

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