Psychometric properties of the Dysexecutive Questionnaire (DEX): a study with Brazilian older adults

Abstract This study aimed to verify the psychometric properties of the Dysexecutive Questionnaire (DEX) through exploratory factor analysis (EFA), evidence of reliability, and convergent validity, in a sample of neurologically preserved older adults. Participants were 345 older adults who answered, in addition to DEX, a sociodemographic and clinical questionnaire, the Mini-Mental State Examination (MMSE), and two verbal fluency tasks. The EFA was conducted through Parallel Analysis based on the generation of a polychoric correlation matrix, as well as Pearson’s correlation between the DEX scores, age, education, MMSE, and verbal fluency tasks. According to the EFA, the extraction of two factors (“Inhibition” and “Social Regulation and Planning”) was suggested and DEX was negatively associated with age and MMSE. In conclusion, DEX presented a satisfactory factorial structure for older adults, which can be considered a reliable self-report measure for complaints of executive functions.

Bibliographic Details

Main Authors:	Oliveira,Camila Rosa de, Lima,Margarida Maria Baptista Mendes Pedroso de, Barroso,Sabrina Martins, Argimon,Irani Iracema de Lima
Format:	Digital revista
Language:	English
Published:	Universidade de São Francisco, Programa de Pós-Graduação Stricto Sensu em Psicologia 2021
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-82712021000500097
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