Spanish validation of the pathological buying screener in patients with eating disorder and gambling disorder

J Behav Addict. 2019 Mar 1;8(1):123-134. doi: 10.1556/2006.8.2019.08.

Abstract

Background and aims: 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.

Methods: 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.

Results: 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.

Discussion and conclusions: 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.

Keywords: eating disorder; gambling disorder; pathological buying; pathological buying screener; psychometric properties; validation.

Publication types

  • Validation Study

MeSH terms

  • Adult
  • Behavior, Addictive / diagnosis*
  • Behavior, Addictive / epidemiology
  • Comorbidity
  • Consumer Behavior*
  • Feeding and Eating Disorders* / epidemiology
  • Female
  • Gambling* / epidemiology
  • Humans
  • Male
  • Middle Aged
  • Psychiatric Status Rating Scales / standards*
  • Psychometrics* / instrumentation
  • Psychometrics* / methods
  • Psychometrics* / standards
  • Reproducibility of Results
  • Spain / epidemiology
  • Young Adult

Grant support

Funding sources: This manuscript and research were supported by grants from the Ministerio de Economía y Competitividad (PSI2015-68701-R), Ministerio de Sanidad, Servicios Sociales e Igualdad (PR338/17), Instituto de Salud Carlos III (ISCIII) (PI17/01167), Delegación del Gobierno para el Plan Nacional sobre Drogas (2017I067), and co-funded by FEDER funds /European Regional Development Fund (ERDF), a way to build Europe.