The dimensional assessment of personality in drug addicts: a mixed-effects Rasch model approach

Annalina Sarra (), Lara Fontanella (), Fausto D’Egidio () and Paolo Frattone ()

Quality & Quantity: International Journal of Methodology, 2014, vol. 48, issue 6, 3025-3036

Abstract: Drug abuse results from a series of different factors, such as social and family issues. Subjects more vulnerable to develop an addiction are, for instance, people living in high-stress environments who may resort to addiction in order to cope with their circumstances, such as demanding jobs, family crisis or other situations or people living in low-income households where violence occurs, who may be triggered into addiction as a way to escape negative emotions or ignore any underlying problems or issues. Psychometric research in the field of drug dependence has focused on identifying certain personality characteristics. It is now generally agreed that personality may influence, precipitate or perpetuate substance abuse. The aim of this paper is to perform a dimensional assessment of personality in a sample of drug addicts. To better understand the complexity of addictive behaviours of substance-using individuals, the Cloninger’s temperament and character inventory test is employed while the item response data analysis is performed by mixed-effects Rasch models. These models combine the advantages both of Rasch measurement framework for latent variables and of models with hierarchical data. To evaluate the differences in dimensions of temperament and character inventory test in subjects with drug addiction, we fit and compare a sequence of mixed-effects Rasch models. Results from models fitting are compared and discussed for a data set of 84 participants. Copyright Springer Science+Business Media Dordrecht 2014

Keywords: Drug addicts; Personality traits; Temperament and character inventory (TCI); Mixed-effects Rasch models (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1007/s11135-013-9938-x

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