title: Factor analysis of the Autism Spectrum Screening Questionnaire.
abstract: The present study investigated the factor structure of parent and teacher Autism Spectrum Screening Questionnaire (ASSQ) in a population of 7-9 years old children. For validation purposes, factors derived were correlated with results on the Strengths and Difficulties Questionnaire (SDQ). A three-factor solution was identified on both parent and teacher ASSQ. Most of the variance was explained by one factor including measures of social function, validated by a high correlation with the SDQ peer problems scale. The second factor included measures of autism-associated problems. The items allocated to the third factor were more specific for a cognitive style typically found in high-functioning individuals with autism/Asperger syndrome. This factor did not correlate highly with any of the SDQ subscales. The results indicated that the screening efficiency of ASSQ could be increased by closer examination of the individual profile of factor scores.
authors.affiliation: Centre for Child and Adolescent Mental Health, University of Bergen, Norway. maj-britt.posserud@rbup.uib.no
authors.forename: Britt
authors.initials: B
authors.lastname: Posserud
authors.forename: Astri J
authors.initials: AJ
authors.lastname: Lundervold
authors.forename: Maaike C
authors.initials: MC
authors.lastname: Steijnen
authors.forename: Sophie
authors.initials: S
authors.lastname: Verhoeven
authors.forename: Kjell Morten
authors.initials: KM
authors.lastname: Stormark
authors.forename: Christopher
authors.initials: C
authors.lastname: Gillberg
mesh_terms: D020817:Asperger Syndrome / Q000175:diagnosis* / Q000523:psychology; D001321:Autistic Disorder / Q000175:diagnosis* / Q000523:psychology; D002648:Child; D002653:Child Behavior Disorders / Q000175:diagnosis / Q000523:psychology; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D008403:Mass Screening; D009664:Norway; D015588:Observer Variation; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D012917:Social Adjustment; D012931:Social Environment; D011795:Surveys and Questionnaires