Repetitive and Restricted Behaviors and Interests in Autism Spectrum Disorder: Relation to Psychopathology

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dc.contributor.advisorPerry, Adrienne
dc.contributor.authorJasim, Sara
dc.date.accessioned2022-12-14T16:21:43Z
dc.date.available2022-12-14T16:21:43Z
dc.date.copyright2022-06-02
dc.date.issued2022-12-14
dc.date.updated2022-12-14T16:21:43Z
dc.degree.disciplinePsychology(Functional Area: Clinical-Developmental)
dc.degree.levelMaster's
dc.degree.nameMA - Master of Arts
dc.description.abstractRepetitive and restricted behaviors and interests (RRBIs) in Autism Spectrum Disorder (ASD) have significant negative impacts on well-being and daily functioning. RRBIs vary as a function of an individual’s sex, age, and cognitive level as well as the presence of comorbid psychopathology. However, findings on these relationships have been ambiguous, partly due to the use of broad categorizations of RRBIs (e.g., lower- vs higher-order) rather than specific RRBIs (e.g., stereotypy) and the use of age-corrected cognitive level (i.e., IQ). The purpose of this study was to examine the patterns of specific RRBIs, obtained via the Repetitive Behavior Scale–Revised (RBS-R), in different sex, age, and raw cognitive level groups, as well as the relationship of RRBIs with internalizing and externalizing behaviors. Secondary data analyses were conducted using the Simons Simplex Collection (SSC) dataset, which included 2,758 participants ranging in age from 4 to 18 years. Across all RBS-R subtypes, results revealed no sex differences. However, older children demonstrated higher rates of Ritualistic/Sameness behaviors than younger children and adolescents, whereas younger and older children showed more Stereotypy than adolescents. In terms of cognitive level differences, the lower cognitive level groups showed higher rates of RBS-R subtypes except for Ritualistic/Sameness. After controlling for age and cognitive level, RBS-R subtypes accounted for a substantial amount of variance in internalizing and externalizing behaviors (23% and 25%, respectively). Specifically, Ritualistic/Sameness and Self-Injurious Behavior both predicted internalizing and externalizing behaviors, whereas Stereotypy only predicted internalizing behavior. These findings have key clinical implications that emphasize not only the consideration of sex, age, and cognitive level, but also specific RRBIs and associated psychopathology, when assessing for ASD and designing individualized interventions. Limitations of the present study and future directions are discussed.
dc.identifier.urihttp://hdl.handle.net/10315/40624
dc.languageen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectClinical psychology
dc.subjectDevelopmental psychology
dc.subjectMental health
dc.subject.keywordsAutism
dc.subject.keywordsMental health
dc.subject.keywordsRepetitive behaviors
dc.subject.keywordsMaladaptive behaviors
dc.subject.keywordsDevelopmental psychology
dc.subject.keywordsAutism symptoms
dc.subject.keywordsDSM-5
dc.titleRepetitive and Restricted Behaviors and Interests in Autism Spectrum Disorder: Relation to Psychopathology
dc.typeElectronic Thesis or Dissertation

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