[Spanish version of the Dysexecutive Questionnaire (DEX-Sp): psychometric properties in addicts and non-clinical sample].
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.


METHODS
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 Alfa=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.
Pedrero Pérez
Eduardo José
EJ
Instituto de Adicciones, Madrid Salud, Ayuntamiento de Madrid, Madrid, Spain. ejpedrero@yahoo.es
Ruiz Sánchez de León
José María
JM
Rojo Mota
Gloria
G
Llanero Luque
Marcos
M
Olivar Arroyo
Alvaro
A
Bouso Saiz
José Carlos
JC
Puerta García
Carmen
C
D000328:Adult; D005260:Female; D005625:Frontal Lobe / Q000503:physiopathology*; D006801:Humans; D007802:Language; D008297:Male; D011594:Psychometrics; D019966:Substance-Related Disorders / Q000175:diagnosis / Q000503:physiopathology*; D011795:Surveys and Questionnaires