Titre : | Monitoring emerging drug trends: Psychometrics and validity in earlier warning systems (2011) |
Auteurs : | J. MOUNTENEY ; M. STOOVE ; S. HAUGLAND |
Type de document : | Article : Périodique |
Dans : | Addiction Research and Theory (Vol.19, n°1, February 2011) |
Article en page(s) : | 32-39 |
Langues: | Anglais |
Discipline : | EPI (Epidémiologie / Epidemiology) |
Mots-clés : |
Thésaurus géographique NORVEGEThésaurus mots-clés SURVEILLANCE EPIDEMIOLOGIQUE ; VALIDITE ; THEORIE ; EPIDEMIOLOGIE DESCRIPTIVE ; VENTE ; SAISIE |
Résumé : | Within the drug trend monitoring arena, there is an increasing emphasis on the need for more timely identification and reporting of new patterns in drug consumption for policy-making purposes. However, there are documented problems with establishing the reliability and validity of results from emerging drug trend monitoring systems (EDTMS), which tend to be multi-indicator and use mixed methods. The aim of this article is to present a standardised and sequential approach to EDTMS development and refinement, i.e. grounded in the key elements of psychometrics, and illustrate its application using an established city level EDTMS. A five-step process is presented and exemplified, incorporating: (1) theoretical conceptualisation of the construct to be measured; (2) score construction; (3) weighting of indicators; (4) exploration of the prospect of categories (subscales); and (5) checking for external validity. The practical application of these validity enhancing stages are demonstrated using the Bergen Earlier Warning System. For non-traditional systems operating in a fast changing environment, an iterative review and refinement process (rather than a standardised system or instrument) has clear benefits, and can be adopted to enhance validity in existing EDTMS, or be used in the development of new models. |
Domaine : | Alcool / Alcohol ; Drogues illicites / Illicit drugs |
Affiliation : | Department of Public Health, University of Bergen, Bergen, Norway / Norvège |
Lien : | http://informahealthcare.com/doi/abs/10.3109/16066351003597134 |
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