Reliability of the ADI-R: multiple examiners evaluate a single case.
The authors assessed the reliability of the Autism Diagnostic Interview (ADI-R). Seven Clinical Examiners evaluated a three and one half year old female toddler suspected of being on the Autism Spectrum. Examiners showed agreement levels of 94-96% across all items, with weighted kappa (K(w)) between .80 and .88. They were in 100% agreement on 74% of the items; in excellent agreement on 6% of the items (93-96%, with K(w) between .78 and .85); in good agreement on 7% (89-90%, with K(w) between .62 and 0.68); and in fair agreement on 3% (82 - 84%, with K(w) between .40 and .47). For the remaining 10% of ADI-R items, examiners showed poor agreement (50-81% with K(w )between -.67 and .37).
Cicchetti
Domenic V
DV
Child Study Center, Yale University School of Medicine, New Haven, CT, USA. dom.cicchetti@yale.edu
Lord
Catherine
C
Koenig
Kathy
K
Klin
Ami
A
Volkmar
Fred R
FR
D001321:Autistic Disorder / Q000175:diagnosis*; D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D015588:Observer Variation