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dc.contributor.authorPosserud, Maj-Britt Rocio
dc.contributor.authorBreivik, Kyrre
dc.contributor.authorGillberg, Christopher
dc.contributor.authorLundervold, Astri
dc.date.accessioned2015-04-13T06:56:06Z
dc.date.available2015-04-13T06:56:06Z
dc.date.issued2013-12eng
dc.identifier.issn0891-4222
dc.identifier.urihttp://hdl.handle.net/1956/9763
dc.description.abstractWith a view to developing a brief screening instrument for autism symptoms in a general population of adolescents, seven items from the Asperger syndrome (and high-functioning autism) diagnostic interview were adapted for use as self-report in an online questionnaire for youths aged 16–19 years (N = 10,220). The selected items target lack of social understanding (4 items) and rigid and repetitive behavior and interests (RRBI; 3 items). Factor analyses were performed, and the seven items were also validated against self-reported ASD diagnosis. Best statistical model fit was found for a bifactor model with one general factor and two domain specific factors tied to social difficulties and RRBI. Both the general and the domain specific factors were associated with self-reported ASD diagnoses. The scale (referred to as the Autism Symptom SElf-ReporT for Adolescents and Adults – ASSERT) had good screening properties with a receiver operating curve-area under the curve (ROC-AUC) of 0.87 and a diagnostic odds ratio (DOR) of 15.8. Applying a modified scoring of the scale further improved the screening properties leading to a ROC-AUC of 0.89 and a DOR of 24.9. The ASSERT holds promise as a brief self-report screen for autism symptoms in adolescents, and further studies should explore its usefulness for adults.en_US
dc.language.isoengeng
dc.publisherElseviereng
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/eng
dc.subjectAutismeng
dc.subjectASDeng
dc.subjectAutism symptomseng
dc.subjectScreeneng
dc.subjectAdolescentseng
dc.subjectAdultseng
dc.subjectFactor analysiseng
dc.subjectASSERTeng
dc.subjectSelf-reporteng
dc.titleASSERT - The Autism Symptom SElf-ReporT for adolescents and adults: Bifactor analysis and validation in a large adolescent populationeng
dc.typePeer reviewed
dc.typeJournal article
dc.subject.nsiVDP::Social sciences: 200::Psychology: 260::Biological psychology: 261eng
dc.subject.nsiVDP::Medical sciences: 700::Clinical medical sciences: 750::Psychiatry, child psychiatry: 757eng
dc.subject.nsiVDP::Samfunnsvitenskap: 200::Psykologi: 260::Biologisk psykologi: 261nob
dc.subject.nsiVDP::Medisinske fag: 700::Klinisk medisinske fag: 750::Psykiatri, barnepsykiatri: 757nob
dc.date.updated2015-04-01T08:34:13Zen_US
dc.description.versionpublishedVersion
dc.rights.holderCopyright 2013 The Authors
dc.identifier.doihttps://doi.org/10.1016/j.ridd.2013.09.032
dc.identifier.cristin1093742
dc.source.issue12
dc.source.journalJournal of Research in Developmental Disabilities
dc.source.pagenumber4495-4503
dc.source.volume34


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