Spanish version of the Dysexecutive Questionnaire (DEX-Sp): psychometric properties in addicts and non-clinical sample
DOI:
https://doi.org/10.20882/adicciones.243Keywords:
Executive functions, dysexecutive syndrome, frontal lobe, addictive behaviour, questionnaires, psychometrics, factor analysis, treatmentAbstract
Objective: Several studies have shown evidence of executive function impairment associated with substance abuse. This suggests the potential usefulness of a baseline assessment measure to screen for dysexecutive impairments in individuals beginning treatment. The Dysexecutive Questionnaire (DEX) is a test widely used to estimate executive dysfunction. The main objective of this work is to study the psychometric properties of the Spanish version of the Dysexecutive Questionnaire (DEX-Sp). A complementary goal is to study its potential utility for initial screening in addicted individuals seeking treatment. Method: A sample of 131 non-clinical and 127 clinical individuals meeting the DSM-IV-TR substance abuse or dependence criteria were recruited. Results: Internal consistency of the questionnaire was assessed (Cronbach’s _ =0.91), as well as other reliability indicators. Exploratory and confirmatory factor analysis offers four- and five-factor solutions. Also tested were the dimensionality and structural model and its convergent and discriminant validity with other instruments. Differences between clinical and non-clinical individuals and total scores were also analyzed. Conclusions: The data suggest that the Spanish version of the DEX is a useful measure for assessing general symptoms of dysexecutive syndrome, and a valid, reliable and adequate screening test for estimating cognitive impairment associated with substance abuse.References
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