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On Diagnosing Rare Disorders Rarely: Appropriate Use of Screening Instruments / Andrew F. CLARK in Journal of Child Psychology and Psychiatry, 40-2 (February 1999)
[article]
Titre : On Diagnosing Rare Disorders Rarely: Appropriate Use of Screening Instruments Type de document : Texte imprimé et/ou numérique Auteurs : Andrew F. CLARK, Auteur ; Richard HARRINGTON, Auteur Année de publication : 1999 Article en page(s) : p.287-290 Langues : Anglais (eng) Mots-clés : Mental health assessment screening base rate child Index. décimale : PER Périodiques Résumé : The main aim of this study was to determine whether child mental health professionals who regularly use questionnaires to screen for mental disorders know that these questionnaires have a low predictive value when the base rate of a disorder is low. The study was based on a representative sample of professionals who used questionnaires regularly to screen for mental disorders. They were set a problem in which a clinic sample was screened with a questionnaire that, at a certain cut-point, had 80% sensitivity and 80% specificity, and in which the true base rate of disorder was 10%. Only 10% (5/48) of respondents answered correctly that just 30% of individuals who scored above this cut-point would actually have the disorder and more than half of respondents believed that 80% would have the disorder. Both users and designers of questionnaires need to be more aware of and explicit about their drawbacks as screens for mental disorders. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=124
in Journal of Child Psychology and Psychiatry > 40-2 (February 1999) . - p.287-290[article] On Diagnosing Rare Disorders Rarely: Appropriate Use of Screening Instruments [Texte imprimé et/ou numérique] / Andrew F. CLARK, Auteur ; Richard HARRINGTON, Auteur . - 1999 . - p.287-290.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 40-2 (February 1999) . - p.287-290
Mots-clés : Mental health assessment screening base rate child Index. décimale : PER Périodiques Résumé : The main aim of this study was to determine whether child mental health professionals who regularly use questionnaires to screen for mental disorders know that these questionnaires have a low predictive value when the base rate of a disorder is low. The study was based on a representative sample of professionals who used questionnaires regularly to screen for mental disorders. They were set a problem in which a clinic sample was screened with a questionnaire that, at a certain cut-point, had 80% sensitivity and 80% specificity, and in which the true base rate of disorder was 10%. Only 10% (5/48) of respondents answered correctly that just 30% of individuals who scored above this cut-point would actually have the disorder and more than half of respondents believed that 80% would have the disorder. Both users and designers of questionnaires need to be more aware of and explicit about their drawbacks as screens for mental disorders. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=124