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dc.contributor.authorBarrett, SL
dc.contributor.authorUljarević, M
dc.contributor.authorJones, CRG
dc.contributor.authorLeekam, SR
dc.date.accessioned2020-12-10T01:07:13Z
dc.date.available2020-12-10T01:07:13Z
dc.date.issued2018
dc.identifierpii: 242
dc.identifier.citationBarrett, S. L., Uljarević, M., Jones, C. R. G. & Leekam, S. R. (2018). Assessing subtypes of restricted and repetitive behaviour using the Adult Repetitive Behaviour Questionnaire-2 in autistic adults.. Mol Autism, 9 (1), pp.58-. https://doi.org/10.1186/s13229-018-0242-4.
dc.identifier.issn2040-2392
dc.identifier.urihttp://hdl.handle.net/11343/253662
dc.description.abstractBackground: The majority of previous research into restricted and repetitive behaviours (RRBs) has focussed on children, partly due to a lack of suitable measures for RRBs in adults. This study aimed to explore the psychometric properties of the Adult Repetitive Behaviour Questionnaire-2 (RBQ-2A) in a large sample of autistic adults using a self-report questionnaire method. Methods: The RBQ-2A and Autism-Spectrum Quotient (AQ) were administered online. Data from 275 autistic adults aged 18-66 (M = 36.56, SD = 12.24; 100 men and 171 women) were analysed using polychoric principal components analysis (PCA). Reliability and validity were assessed using Cronbach's alpha and correlation analyses. Results: PCA resulted in two components of the RBQ-2A, interpretable as repetitive sensory and motor behaviours (RSMB) and insistence on sameness (IS). Both components showed acceptable internal consistency (α = .70 and .81 respectively) and were significantly moderately correlated with scores on the AQ (r s  = .25 and .42). Participants' scores on IS were higher than their scores on RSMB. RSMB, but not IS, was negatively associated with age, particularly in older adults (≥ 50 years). There were no gender differences. Conclusions: The RBQ-2A is a reliable and valid self-report measure of RRBs in the present sample of autistic adults. As one of the few measures of RRBs aimed at adults, it is suitable for adults with the ability to read and complete a self-report questionnaire. Results build on previous work with children using the Repetitive Behaviour Questionnaire-2 (RBQ-2).
dc.languageeng
dc.publisherSpringer Science and Business Media LLC
dc.titleAssessing subtypes of restricted and repetitive behaviour using the Adult Repetitive Behaviour Questionnaire-2 in autistic adults.
dc.typeJournal Article
dc.identifier.doi10.1186/s13229-018-0242-4
melbourne.affiliation.departmentMelbourne School of Psychological Sciences
melbourne.source.titleMolecular Autism
melbourne.source.volume9
melbourne.source.issue1
melbourne.source.pages58-
dc.rights.licenseCC BY
melbourne.elementsid1364617
melbourne.openaccess.pmchttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC6258483
melbourne.contributor.authorUljarevic, Mirko
dc.identifier.eissn2040-2392
melbourne.accessrightsOpen Access


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