O que é validade na nosologia psiquiátrica / What validity means in psychiatric nosology

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

30/01/2012

RESUMO

Background: Successive reviews of psychiatric classificatory systems emphasize the need of validity for their diagnostic categories and for the classificatory systems themselves. However, it is not only arguable that success has been attained in this regard, but the very meaning of validity within psychiatric nosology seems to be uncertain. Aim: To examine the shortcomings concerning what is meant and on how to employ the notion of validity within psychiatric nosology, as well as suggesting how to better deal with that attribute in the aforementioned context. Method and results: The first analysis performed in this thesis aims at determining how intelligible and how dissonant are the descriptions given to the notion of validity within psychiatric nosology, as well as the broad related terminology. Once it is recognized that the terminology related to the notion of validity is both broad and semantically unstable, and that the theoretical treatment given to that attribute in psychiatric nosology is superficial, an effort is undertaken in order to expose particular conceptions of validity present in research programs in that field. Four conceptions of validity are recognized - here named realist conception, utilitarist conception, psychometric conception and taxonomic conception - and then analyzed as regards their virtues, limitations and liability to mutual reduction. After showing that each of these conceptions of validity has its strengths and limitations, and that they are not reducible to each other, a pragmatic view of the notion of validity in psychiatric nosology is proposed. Accordingly, any conception of validity adopted - conveying different sorts of information - must fit to the scientific interests at stake. Finally, aiming at an improved conceptual systematization to the conceptions of validity previously recognized and examined, it is proposed that they should be viewed as cases of two broader and more basic notions of validity from a semantic point of view - both of them recognized by Claire Pouncey and named nosologic validity and diagnostic validity. Each of the conceptions of validity previously discussed are then presented as particular cases of the notions of diagnostic validity and diagnostic validity, or, at least, as amenable to be read through their lens.

ASSUNTO(S)

mental disorders classificação diagnóstico transtornos mentais classification diagnosis

ACESSO AO ARTIGO

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