Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Dysexecutive Index (DEX)

  • Chava CrequeEmail author
  • Stephanie A. Kolakowsky-Hayner
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_1886

Synonyms

Dysexecutive questionnaire (DEX)

Definition

Dysexecutive index (DEX) is a behavioral assessment of executive function and measures the possible behavioral changes as a result of dysexecutive syndrome. This index primarily measures behavioral difficulties associated with high-level tasks of executive functioning, including impulsivity, inhibition control, monitoring, and planning. Although initially intended only as a qualitative instrument, the DEX has also been used increasingly to address quantitative problems. The test is a 20-item self-report questionnaire focusing on potential deficits in emotional/personality, motivational, behavioral, and cognitive. Items are scored on a Likert-type scale from “never” to “often.” A version of the DEX is concurrently administered to a reliable informant familiar with the patient’s deficits, such as a spouse, friend, or other relative. There is a specific version for children, the Dysexecutive Questionnaire for Children (DEX-C), requiring...

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References and Readings

  1. Alderman, N., Dawson, K., Rutterford, N., & Reynolds, P. (2001). A comparison of the validity of self-report measures amongst people with acquired brain injury: A preliminary study of the usefulness of EuroQol-5D. Neuropsychological Rehabilitation, 11(5), 529–537.CrossRefGoogle Scholar
  2. Chan, R. (2001). Dysexecutive symptoms among a non-clinical sample: A study with the use of the dysexecutive questionnaire. British Journal of Psychology, 92(3), 551.PubMedCrossRefPubMedCentralGoogle Scholar
  3. Chaytor, N., & Schmitter-Edgecombe, M. (2007). Fractionation of the dysexecutive syndrome in a heterogeneous neurological sample: Comparing the dysexecutive questionnaire and the Brock adaptive functioning questionnaire. Brain Injury, 21(6), 615–621.PubMedCrossRefPubMedCentralGoogle Scholar
  4. Wilson, B. A., Evans, J. J., Alderman, N., Burgess, P. W., & Emslie, H. (1997). Behavioural assessment of the Dysexecutive syndrome. In Methodology of frontal and executive function (pp. 239–250). Oxfordshire, UK: Psychology Press Ltd.Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Psychology and NeuroscienceUniversity of Colorado BoulderBoulderUSA
  2. 2.Department of Rehabilitation MedicineIcahn School of Medicine at Mount SinaiNew YorkUSA