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Dysexecutive Questionnaire

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The Dysexecutive Questionnaire (DEX) is a measure of executive function and is used in the assessment of dysexecutive syndrome.

It is a 20-item questionnaire designed to sample emotional, motivational, behavioural and cognitive changes in a subject with DES[1]. One version is designed for the subject to complete and another version is designed for someone who is close to the individual, such as a relative or caregiver[1][2]. Instructions are given to the participant to read 20 statements describing common problems of everyday life and to rate them according to their personal experience. Each item is scored on a 5-point scale according to its frequency from ‘‘never’’ (0 point) to ‘‘very often’’ (4 points)[3].


  1. Cite error: Invalid <ref> tag; no text was provided for refs named Wilson_et_al
  2. Norris, G., & Tate, R. (2000). The behavioural assessment of the dysexecutive syndrome (BADS): ecological, concurrent and construct validity. Neuropsychological Rehabilitation, 10, 33–45.
  3. Amieva, H., Phillips, L., & Della Salla, S. (2003). Behavioural dysexecutive symptoms in normal aging. Brain and Cognition, 53, 129–132.
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