Autism screening questionnaire: diagnostic validity

Date

1999-11-01

Author

Kazak Berument, Sibel
Lord, C
Pickles, A
Bailey, A

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Background: Good interview and diagnostic measures for autism and other pervasive developmental disorders (PDDs) are available but there is a lack of a good screening questionnaire. Aims: To develop and test a screening questionnaire based on items in the best available diagnostic interview--the Autism Diagnostic Interview--Revised (ADI-R). Method: A 40-item scale, the Autism Screening Questionnaire (ASQ), was developed and tested on a sample of 160 individuals with PDD and 40 with non-PDD diagnoses. Results: The ASQ has good discriminative validity with respect to the separation of PDD from non-PDD diagnoses at all IQ levels, with a cut-off of 15 proving most effective. The differentiation between autism and other varieties of PDD was weaker. Conclusions: The ASQ is an effective screening questionnaire for PDD.

Subject Keywords

Psychiatry and Mental health

URI

https://hdl.handle.net/11511/34683

Journal

BRITISH JOURNAL OF PSYCHIATRY

DOI

https://doi.org/10.1192/bjp.175.5.444

Collections

Department of Psychology, Article

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Citation Formats

S. Kazak Berument, C. Lord, A. Pickles, and A. Bailey, “Autism screening questionnaire: diagnostic validity,” BRITISH JOURNAL OF PSYCHIATRY, pp. 444–451, 1999, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34683.