Psychometric validation of the Dysexecutive Questionnaire (DEX)

Simone Shaw, Tian P. S. Oei, Sukanlaya Sawang

Research output: Contribution to journalArticle

8 Citations (Scopus)
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Abstract

This study reported on the validation of the psychometric properties, the factorability, validity, and sensitivity of the Dysexecutive Questionnaire (DEX) in 3 clinical and nonclinical samples. A mixed sample of 997 participants---community (n = 663), psychiatric (depressed [n = 92] and anxious [n = 122]), and neurologically impaired (n = 120)---completed self-report questionnaires assessing executive dysfunction, depression, anxiety, stress, general self-efficacy, and satisfaction with life. Before analyses the data were randomly split into 2 subsets (A and B). Exploratory factor analysis performed on Subset A produced a 3-factor model (Factor 1: Inhibition, Factor 2: Volition, and Factor 3: Social Regulation) in which 15 of the original 20 items provided a revised factor structure that was superior to all other structures. A series of confirmatory factor analyses performed on Subset B confirmed that this revised factor structure was valid and reliable. The revised structure, labeled the DEX-R, was found to be a reliable and valid tool for assessing behavioral symptoms of dysexecutive functioning in mixed community, psychiatric, and neurological samples.

Publisher Statement: ©American Psychological Association, 2015. This paper is not the copy of record and may not exactly replicate the authoritative document published in the APA journal. Please do not copy or cite without author's permission. The final article is available, upon publication, at: https://dx.doi.org/10.1037/a0038195
Original languageEnglish
Pages (from-to)138-147
Number of pages10
JournalPsychological Assessment
Volume27
Issue number1
DOIs
Publication statusPublished - 1 Jan 2015

Bibliographical note

©American Psychological Association, 2015. This paper is not the copy of record and may not exactly replicate the authoritative document published in the APA journal. Please do not copy or cite without author's permission. The final article is available, upon publication, at: https://dx.doi.org/10.1037/a0038195

Keywords

  • Mood and Anxiety Disorders
  • Psychometric
  • Validation
  • DEX-R
  • Dysexecutive Syndrome

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