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Measuring psychiatric disorder in the community: a standardized assessment for use by lay interviewers

Published online by Cambridge University Press:  09 July 2009

Glyn Lewis ,
Anthony J. Pelosi ,
Ricardo Araya  and
Graham Dunn
Glyn Lewis*
Affiliation:
General Practice Research Unit and Department of Biostatistics and Computing, Institute of Psychiatry; Maudsley Hospital, London
Anthony J. Pelosi
Affiliation:
General Practice Research Unit and Department of Biostatistics and Computing, Institute of Psychiatry; Maudsley Hospital, London
Ricardo Araya
Affiliation:
General Practice Research Unit and Department of Biostatistics and Computing, Institute of Psychiatry; Maudsley Hospital, London
Graham Dunn
Affiliation:
General Practice Research Unit and Department of Biostatistics and Computing, Institute of Psychiatry; Maudsley Hospital, London
*
1Address for correspondence: Dr Glyn Lewis, Institute of Psychiatry, De Crespigny Park, London SE5 8AF.
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Synopsis

Many of the standardized interviews currently used in psychiatry require the interviewer to use expert psychiatric judgements in deciding upon the presence or absence of psychopathology. However, when case definitions are standardized it is customary for clinical judgements to be replaced with rules. The Clinical Interview Schedule was therefore revised, in order to increase standardization, and to make it suitable for use by ‘lay’ interviewers in assessing minor psychiatric disorder in community, general hospital, occupational and primary care research.

Two reliability studies of the revised Clinical Interview Schedule (CIS-R) were conducted in primary health care clinics in London and Santiago, Chile. Both studies compared psychiatrically trained interviewer(s) with lay interviewer(s). Estimates of the reliability of the CIS-R compared favourably with the results of studies of other standardized interviews. In addition, the lay interviewers were as reliable as the psychiatrists and did not show any bias in their use of the CIS-R. Confirmatory factor analysis models were also used to estimate the reliabilities of the CIS-R and self-administered questionnaires and indicated that traditional measures of reliability are probably overestimates.

Type
Original Articles
Information
Psychological Medicine , Volume 22 , Issue 2 , May 1992 , pp. 465 - 486
Copyright
Copyright © Cambridge University Press 1992

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