title: A comparison and evaluation of three commonly used autism scales.
abstract: Reliability and validity of three commonly used autism scales, the Autism Behavior Checklist (Krug, Arick, & Almond, 1980), the Real Life Rating Scale (Freeman, Ritvo, Yokota, & Ritvo, 1986), and the Childhood Autism Rating Scale (Schopler, Reichler, & Renner, 1988), were investigated. Data analyses were based on completed protocols for 24 children or adolescents who met DSM-III-R criteria for pervasive developmental disorders. First, to replicate previous findings, interrater reliability of each of the two direct observational scales was assessed. Second, correlations between pairs of the three scales were calculated. Third, diagnostic classifications based on autism scale cutoff scores were compared to classifications based on DSM-III-R criteria. Fourth, relationships between autism scale scores and adaptive behavior scores were investigated. Results and implications for the use of these scales in the assessment of autistic behaviors are discussed.
authors.affiliation: Department of Psychology, Louisiana State University, Baton Rouge 70803-5501.
authors.forename: J A
authors.initials: JA
authors.lastname: Sevin
authors.forename: J L
authors.initials: JL
authors.lastname: Matson
authors.forename: D A
authors.initials: DA
authors.lastname: Coe
authors.forename: V E
authors.initials: VE
authors.lastname: Fee
authors.forename: B M
authors.initials: BM
authors.lastname: Sevin
mesh_terms: D000293:Adolescent; D001321:Autistic Disorder / Q000175:diagnosis* / Q000523:psychology; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D010552:Personality Assessment / Q000706:statistics & numerical data*; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data; D011594:Psychometrics; D015203:Reproducibility of Results