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Autism screening questionnaire: Diagnostic validity

  • Sibel Kazak Berument (a1), Michael Rutter (a1), Catherine Lord (a1), Andrew Pickles (a1) and Anthony Bailey (a1)...
Abstract
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.

Copyright
Corresponding author
Dr Michael Rutter, Social, Genetic and Developmental Psychiatry Research Centre. Institute of Psychiatry, De Crespigny Park, London SES 8AF
Footnotes
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Declaration of interest

The study was supported by the Medical Research Council.

Footnotes
References
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The British Journal of Psychiatry
  • ISSN: 0007-1250
  • EISSN: 1472-1465
  • URL: /core/journals/the-british-journal-of-psychiatry
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Autism screening questionnaire: Diagnostic validity

  • Sibel Kazak Berument (a1), Michael Rutter (a1), Catherine Lord (a1), Andrew Pickles (a1) and Anthony Bailey (a1)...
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