Spanish validation of the pathological buying screener in patients with eating disorder and gambling disorder
Fernández-Aranda, Fernando (Universitat de Barcelona)
Granero, Roser (Universitat Autònoma de Barcelona)
Mestre-Bach, Gemma (Instituto de Salud Carlos III)
Steward, Trevor (Instituto de Salud Carlos III)
Müller, Astrid (Hannover Medical School)
Brand, Matthias (Erwin L. Hahn Institute for Magnetic Resonance Imaging)
Mena Moreno, Teresa (Instituto de Salud Carlos III)
Vintró Alcaraz, Cristina (Instituto de Salud Carlos III)
Del Pino-Gutiérrez, Amparo (Universitat de Barcelona. Escola d'Infermeria)
Moragas, Laura (Institut d'Investigació Biomèdica de Bellvitge)
Mallorquí-Bagué, Núria (Instituto de Salud Carlos III)
Aymamí, Neus (Universitat de Barcelona)
Gomez-Peña, Mónica (Institut d'Investigació Biomèdica de Bellvitge)
Lozano Madrid, María (Instituto de Salud Carlos III)
Menchón Magriñá, José Manuel (Instituto de Salud Carlos III)
Jiménez-Murcia, Susana (Universitat de Barcelona)

Data:	2019
Resum:	Pathological buying (PB) is a behavioral addiction that presents comorbidity with several psychiatric disorders. Despite the increase in the prevalence estimates of PB, relatively few PB instruments have been developed. Our aim was to assess the psychometric properties of the Spanish version of the pathological buying screener (PBS) and to explore the associations between PB, psychopathology, and personality traits. A total of 511 participants, including gambling disorder (GD) and eating disorder (ED) patients diagnosed according to DSM-5 criteria, as well as healthy controls (HCs), took part in the study. Higher PB prevalence was obtained in ED patients than in the other two study groups (ED 12. 5% vs. 1. 3% HC and 2. 7% GD). Confirmatory factor analysis (CFA) verified the 13-item structure of the PBS, and indexes of convergent and discriminant capacity were estimated. CFA confirmed the structure in two factors (excessive buying behavior and loss of control) with excellent internal consistency (α = . 92 and. 86, respectively). Good convergent capacity was obtained with external psychopathology and personality measures (positive correlations with novelty seeking and negative associations with self-directedness and harm avoidance were found). Good discriminative capacity to differentiate between the study groups was obtained. This study provides support for the reliability and validity of the Spanish adaptation of the PBS. Female sex, higher impulsivity, and higher psychopathology were associated with PB.
Ajuts:	Ministerio de Economía y Competitividad PSI2015-68701-R Ministerio de Sanidad, Servicios Sociales e Igualdad PR338/17 Instituto de Salud Carlos III PI17/01167
Nota:	Altres ajuts: Delegación del Gobierno para el Plan Nacional sobre Drogas (2017I067)
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Pathological buying ; Gambling disorder ; Eating disorder ; Pathological buying screener ; Validation ; Psychometric properties
Publicat a:	Journal of behavioral addictions, Vol. 8 (april 2019) , p. 123-134, ISSN 2063-5303

DOI: 10.1556/2006.8.2019.08
PMID: 30932708

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