title: Comprehensive comparison of self-administered questionnaires for measuring quantitative autistic traits in adults.
abstract: We comprehensively compared all available questionnaires for measuring quantitative autistic traits (QATs) in terms of reliability and construct validity in 3,147 non-clinical and 60 clinical subjects with normal intelligence. We examined four full-length forms, the Subthreshold Autism Trait Questionnaire (SATQ), the Broader Autism Phenotype Questionnaire, the Social Responsiveness Scale2-Adult Self report (SRS2-AS), and the Autism-Spectrum Quotient (AQ). The SRS2-AS and the AQ each had several short forms that we also examined, bringing the total to 11 forms. Though all QAT questionnaires showed acceptable levels of test-retest reliability, the AQ and SRS2-AS, including their short forms, exhibited poor internal consistency and discriminant validity, respectively. The SATQ excelled in terms of classical test theory and due to its short length.
authors.affiliation: Department of Public Health, Aichi Medical University, 1-1 Yazako, Nagakute, Aichi, 480-1195, Japan, nishiyama@minos.ocn.ne.jp.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Nishiyama
authors.forename: Masako
authors.initials: M
authors.lastname: Suzuki
authors.forename: Katsunori
authors.initials: K
authors.lastname: Adachi
authors.forename: Satoshi
authors.initials: S
authors.lastname: Sumi
authors.forename: Kensuke
authors.initials: K
authors.lastname: Okada
authors.forename: Hirohisa
authors.initials: H
authors.lastname: Kishino
authors.forename: Saeko
authors.initials: S
authors.lastname: Sakai
authors.forename: Yoko
authors.initials: Y
authors.lastname: Kamio
authors.forename: Masayo
authors.initials: M
authors.lastname: Kojima
authors.forename: Sadao
authors.initials: S
authors.lastname: Suzuki
authors.forename: Stephen M
authors.initials: SM
authors.lastname: Kanne
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001321:Autistic Disorder / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010641:Phenotype; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D057566:Self Report; D011795:Surveys and Questionnaires; D055815:Young Adult