title: The Mandarin Chinese version of the childhood autism spectrum test (CAST): test-retest reliability.
abstract: This study aimed to investigate the test-retest reliability of a Mandarin Chinese version of the Childhood Autism Spectrum Test (CAST), in a Chinese population. Parents in a school based study on the prevalence of ASC in mainland China were asked to complete a second version of the CAST approximately 2-4 months after first completion. Test retest data were available from 70 children (questionnaires completed by the same parent). Using a cut-off score of 15, the test-retest reliability was good (kappa=0.64). The test-retest reliability in three categories (≤ 11, 12-14, ≥ 15) was moderate (weighted kappa=0.53). The correlation between the scores at CAST-1 and CAST-2 was good (Spearman rho=0.73). The Mandarin CAST demonstrated moderate to good test-retest reliability as a screening instrument for ASC in an assessment sample in mainland China.
authors.affiliation: Cambridge Institute of Public Health, Department of Public Health and Primary Care, Forvie Site, Robinson Way, University of Cambridge, CB2 0SR, UK; Autism Research Centre, Department of Psychiatry, Douglas House, 18b Trumpington Road, University of Cambridge, CB2 2AH, UK. Electronic address: xs227@medschl.cam.ac.uk.
authors.forename: Xiang
authors.initials: X
authors.lastname: Sun
authors.forename: Carrie
authors.initials: C
authors.lastname: Allison
authors.forename: Bonnie
authors.initials: B
authors.lastname: Auyeung
authors.forename: Fiona E
authors.initials: FE
authors.lastname: Matthews
authors.forename: Simon
authors.initials: S
authors.lastname: Baron-Cohen
authors.forename: Carol
authors.initials: C
authors.lastname: Brayne
mesh_terms: D044466:Asian People / Q000523:psychology* / Q000706:statistics & numerical data; D002648:Child; D002659:Child Development Disorders, Pervasive / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology*; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods / Q000592:standards*; D009483:Neuropsychological Tests / Q000592:standards; D015995:Prevalence; D011594:Psychometrics / Q000379:methods / Q000592:standards; D015203:Reproducibility of Results; D012574:Schools
keywords: Autism; CAST; China; Screening; Test–retest reliability