Assessing Autism in Adults: An Evaluation of the Developmental, Dimensional and Diagnostic Interview—Adult Version (3Di-Adult)

William Mandy; Kiri Clarke; Michele McKenner; Andre Strydom; Jason Crabtree; Meng-Chuan Lai; Carrie Allison; Simon Baron-Cohen; David Skuse

doi:10.1007/s10803-017-3321-z

Assessing Autism in Adults: An Evaluation of the Developmental, Dimensional and Diagnostic Interview—Adult Version (3Di-Adult)

William Mandy, Kiri Clarke, Michele McKenner, Andre Strydom, Jason Crabtree, Meng-Chuan Lai, Carrie Allison, Simon Baron-Cohen, David Skuse

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Abstract

We developed a brief, informant-report interview for assessing autism spectrum conditions (ASC) in adults, called the Developmental, Dimensional and Diagnostic Interview-Adult Version (3Di-Adult); and completed a preliminary evaluation. Informant reports were collected for participants with ASC (n = 39), a non-clinical comparison group (n = 29) and a clinical comparison group (n = 20) who had non-autistic mental health conditions. Mean administration time was 38 min (50 min for ASC). Internal consistency (αs ≥ 0.93) and inter-rater agreement (ICCs ≥ 0.99) were high. When discriminating ASC from non-ASC, the 3Di-Adult showed excellent sensitivity (95 and specificity (92. The 3Di-Adult shows promise as a psychometrically sound and time-efficient interview for collecting standardised informant reports for DSM-5 assessments of ASC in adults, in research and clinical practice.

Original language	Undefined/Unknown
Pages (from-to)	1-12
Number of pages	12
Journal	Journal of Autism and Developmental Disorders
DOIs	https://doi.org/10.1007/s10803-017-3321-z
Publication status	E-pub ahead of print - 7 Nov 2017

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10.1007/s10803-017-3321-zLicence: CC BY

Assessing Autism in Adults_Publishedonline7Noevmber2017_GOLD VoR (CC BY)Final published version, 789 KBLicence: CC BY

Cite this

Mandy, W., Clarke, K., McKenner, M., Strydom, A., Crabtree, J., Lai, M.-C., Allison, C., Baron-Cohen, S., & Skuse, D. (2017). Assessing Autism in Adults: An Evaluation of the Developmental, Dimensional and Diagnostic Interview—Adult Version (3Di-Adult). Journal of Autism and Developmental Disorders, 1-12. Advance online publication. https://doi.org/10.1007/s10803-017-3321-z

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AU - Strydom, Andre

AU - Crabtree, Jason

AU - Lai, Meng-Chuan

AU - Allison, Carrie

AU - Baron-Cohen, Simon

AU - Skuse, David

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