Delis-Kaplan Executive Function System

D-KEFS
The Delis-Kaplan Executive Function System (D-KEFS) is the first nationally standardised set of tests to evaluate higher level cognitive functions in both children and adults. Guidance on using this test in your telepractice

Choose from our formats

  • Kits

    Starter & complete kits, print & digital

    2 options

    From £1,070.40
  • Test forms & reports

    Booklets, record forms, answer sheets, report usages & subscriptions

    16 options

    From £48.00
  • Support materials

    Manuals, stimulus books, replacement items & other materials

    3 options

    From £175.00
  • All products

    All tests and materials offered for D-KEFS

    21 options

    From £48.00
- of 21 results
  • D-KEFS Q-global Technical Manual
    9780749115685 Qualification Level C

    In Stock/VAT included (where applicable) £175.00

  • D-KEFS Q-global Examiner’s Manual
    9780749115562 Qualification Level C

    In Stock/VAT included (where applicable) £175.00

  • D-KEFS 20 Questions Test Record Forms
    9780158091365 Qualification Level C

    Pack of 25

    In Stock/VAT included (where applicable) £73.20

  • D-KEFS Sorting Test - alternate set of Cards
    9780158091211 Qualification Level C

    3 sets of 6 cards each

    In Stock/VAT included (where applicable) £108.00

  • D-KEFS Alternate Record Forms for D-KEFS sorting
    9780158091204 Qualification Level C

    Verbal Fluency and 20 Question Tests, Pack of 25

    In Stock/VAT included (where applicable) £134.40

  • D-KEFS Trail Making Response Combined Pack
    9780158091198 Qualification Level C

    Trail making Test Response Booklets, Pack of 25 set (each set contains 25 different Response Booklets for 5 trail making conditions)

    In Stock/VAT included (where applicable) £184.80

  • D-KEFS Sorting Test - set of Cards
    9780158091181 Qualification Level C

    2 sets of Standard Sorting Cards and 1 Practice Set

    In Stock/VAT included (where applicable) £108.00

  • D-KEFS Complete Kit UK
    9780749167998 Qualification Level C

    Includes Manual, Stimulus Booklet, Sorting Cards (3 sets of 6 Cards), 1 Tower Stand with 5 Colour Disks, 25 Record Forms, 25 Design Fluency Response Booklets, 25 Trail Making Response Booklet Sets (each set contains 5 Response Booklets for the 5 trail making conditions) in a trolley bag

    In Stock/VAT included (where applicable) £1,070.40

  • D-KEFS Complete Kit with Scorer Assisstant CD
    9780749167981 Qualification Level C

    Includes all components of the Complete Kit and CD Rom for Windows®

    In Stock/VAT included (where applicable) £1,168.80

  • D-KEFS Design Fluency Test Response Booklets
    9780158091174 Qualification Level C

    Pack of 25

    In Stock/VAT included (where applicable) £51.60

  • D-KEFS Colour-word Interference Test Record Forms
    9780158091235 Qualification Level C

    Pack of 25

    In Stock/VAT included (where applicable) £73.20

  • D-KEFS Sorting Test Record Forms
    9780158091228 Qualification Level C

    Pack of 25

    In Stock/VAT included (where applicable) £73.20

  • D-KEFS Design Fluency Test Record Forms
    9780158091358 Qualification Level C

    Pack of 25

    In Stock/VAT included (where applicable) £73.20

  • D-KEFS Proverb Test Record Forms
    9780158091396 Qualification Level C

    Pack of 25

    In Stock/VAT included (where applicable) £73.20

  • D-KEFS Standard Record Forms
    9780158091150 Qualification Level C

    All nine subtests combined, Pack of 25

    In Stock/VAT included (where applicable) £240.00

  • D-KEFS Tower Test Record Forms
    9780158091389 Qualification Level C

    Pack of 25

    In Stock/VAT included (where applicable) £73.20

  • D-KEFS Verbal Fluency Test Record Forms
    9780158091341 Qualification Level C

    Pack of 25

    In Stock/VAT included (where applicable) £73.20

  • D-KEFS Word context Test Record Forms
    9780158091372 Qualification Level C

    Pack of 25

    In Stock/VAT included (where applicable) £73.20

  • D-KEFS Trail Making Record Forms
    9780158091334 Qualification Level C

    Pad of 25

    In Stock/VAT included (where applicable) £48.00

  • D-KEFS Scoring Assistant v1.0.2 CD-ROM Windows
    9780158984186 Qualification Level C

    In Stock/VAT included (where applicable) £126.00

  • DKEFS Q-global Stimulus Book
    9780749183301 Qualification Level C

    In Stock/VAT included (where applicable) £238.00

Overview

Publication date:
2001
Age range:
Ages 8 through 89 years
Qualification level:
C
Completion time:
Variable depending on subtest selected: full battery 90 minutes
Norms:
Normed on over 1,500 individuals demographically and regionally matched with the U.S. population
System requirements:
Software-based scoring and reporting is compatible with Windows XP, Vista, & 7 only.
Telepractice:
Guidance on using this test in your telepractice

Product Details

D-KEFS assesses the key components of executive functions believed to be mediated primarily by the frontal lobe. With nine stand-alone tests, D-KEFS allows examiners to comprehensively assess the key components of executive functions within verbal and spatial modalities. 

Benefits

  • Assess the integrity of the frontal system of the brain.
  • Determine how deficits in abstract, creative thinking may impact daily life.
  • Plan coping strategies and rehabilitation programs tailored to each patient's profile of executive-function strengths and weaknesses.
  • Choose from two forms: Standard and Alternate.
  • Generate D-KEFS score reports faster and easier with D-KEFS Scoring Assistant® software.

Features

The D-KEFS game-like format is engaging for examinees, encouraging optimal performance without providing "right/wrong" feedback that can create frustration in some children and adults.

  • Standard Record Forms, including all nine D-KEFS tests.
  • Alternate Record Forms, including alternate versions of D-KEFS Sorting, Verbal Fluency, and 20 Questions tests.
  • Alternate set of Sorting Cards available.
  • Subtests can be recorded and scored as a complete battery or as individual subtests.

Correlates with CVLT-II

D-KEFS is correlated with the CVLT-II, providing information concerning the role of memory on D-KEFS performance.

An important study by Bohnen, Twijnstra, and Jolles (1992) was noted (p. 21) and referenced (p. 385) In the D-KEFS Examiner’s Manual (Delis, Kaplan, & Kramer, 2001). In this study, Bohnen et al. collected data from 10 patients (in the Netherlands) who had sustained mild TBIs with post-concussive symptoms that lasted longer than 3 months (the Persistent PCS group) and compared them to mild TBI patients who had recovered from their PCS symptoms after 3 months (the Recovered group). Bohnen et al. (1992) initially demonstrated that the Persistent PCS group performed significantly worse than the Recovered Group on a modified Stroop task that incorporated a switching procedure.

Dr. Manolo Sedo of Spain recently brought to our attention a second study by Bohnen, Jolles, and Twijnstra (1992), in which patients with acute mild TBI (6 to 14 days post injury) performed significantly worse than a match control group on the modified Stroop task that incorporated a switching procedure.

We wish to thank Dr. Sedo for drawing our attention to this important study.

Bohnen, N., Twijnstra, A., & Jolles, J. (1992). Performance in the Stroop color word test in relationship to the persistence of symptoms following mild head injury. Acta Neurologica Scandinavica, 85(2), 116–121.

Bohnen, N., Jolles, J., & Twijnstra, A. (1992). Modification of the Stroop color word test improves differentiation between patients with mild head injury and matched controls. The Clinical Neuropsychologist, 6(2), 178–184.

Telepractice

Find out how to use this test in your telepractice.

Learn more

Q-interactive

D-KEFS on Q-interactive at a Glance: (Select subtests available)

Available With

  • Standard, Classroom, & Experiential Licenses

Subtests Available

  • Trail Making Test
  • Verbal Fluency
  • Design Fluency
  • Color-Word Interference

Subtest Pricing

  • Pay as you go: £1.50 per subtest
  • Prepay: 1 usage* per subtest

*Cost per usage between £1.10 and £1.50 depending on volume discounts

Scoring and Reporting

  • Excel Report

Materials Needed

  • View the Pricing & Ordering tab and open the Q-interactive section

Benefits of D-KEFS on Q-interactive

  • Create custom batteries by combining subtests from the D-KEFS with other tests such as the WAIS-IV.
  • Standardize administration and simplify the management of D-KEFS materials so you can focus on what is important – the examinee.
  • Obtain scaled scores immediately after finishing a subtest, to increase speed and accuracy.

How Can I Buy D-KEFS on Q-interactive?

New customers:

Annual Q-interactive licenses can be purchased using our online order form or by calling Customer Support at 0345 630 8888. See the Q-interactive pricing tab for more information on license options.

Current Q-interactive customers:

If you want to add the D-KEFS to your account, visit our online order form and select the "Add test(s) to existing account" option. You may also call Customer Support at 0345 630 8888.