Titre : | 30-Item General Health Questionnaire in general hospitals : Selecting items using a stepwise hierarchical procedure. (2001) |
Auteurs : | Johannes WANCATA ; Rainer ALEXANDROWICZ ; Norbert BENDA ; Department of Psychiatry. Institute of Psychology. University of Vienna. Vienna. ATR |
Type de document : | Article |
Dans : | European journal of epidemiology (vol. 17, n° 11, 2001) |
Pagination : | 1001-1004 |
Langues: | Anglais |
Mots-clés : | Questionnaire ; Evaluation ; Validité ; Homme ; Epidémiologie ; Méthodologie |
Résumé : | [BDSP. Notice produite par INIST-CNRS x9qBdR0x. Diffusion soumise ... autorisation]. An attempt was made to improve the validity of the 30-item General Health Questionnaire by excluding items. This exclusion was performed by using correlations of sum-scores with an external case criterion. This hierarchical approach based on subsets of items (stepwise hierarchical variable selection) resulted in a 9-item questionnaire whose discriminating performance was significantly better than that of the original version. |