The Developmental Diagnostic Dimensional Interview-short version (3Di-sv) provides a brief standardized parental interview for diagnosing autism spectrum disorder (ASD). This study explored its validity, and compatibility with DSM-5 ASD. 3Di-sv classifications showed good sensitivity but low specificity when compared to ADOS-2-confirmed clinical diagnosis. Confirmatory factor analyses found a better fit against a DSM-5 model than a DSM-IV-TR model of ASD. Exploration of the content validity of the 3Di-sv for the DSM-5 revealed some construct underrepresentation, therefore we obtained data from a panel of 3Di-trained clinicians from ASD-specialized centers to recommend items to fill these gaps. Taken together, the 3Di-sv provides a solid basis to create a similar instrument suitable for DSM-5. Concrete recommendations are provided to improve DSM-5 compatibility.

Additional Metadata
Keywords 3Di, Assessment, Autism spectrum disorder, DSM-5, Factor analysis, Validity
Persistent URL,
Journal Journal of Autism and Developmental Disorders
Slappendel, G, Mandy, F, van der Ende, J, Verhulst, F.C, van der Sijde, A, Duvekot, J, … Greaves-Lord, K. (2016). Utility of the 3Di Short Version for the Diagnostic Assessment of Autism Spectrum Disorder and Compatibility with DSM-5. Journal of Autism and Developmental Disorders, 46(5), 1834–1846. doi:10.1007/s10803-016-2713-9