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Delis-Kaplan Executive Function System

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

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  • Kits

    Starter & complete kits, print & digital

    2 options

    From £1,124.40
    From £1,124.40
  • Test forms & reports

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

    16 options

    From £49.20
    From £49.20
  • Support materials

    Manuals, stimulus books, replacement items & other materials

    3 options

    From £184.00
    From £184.00
  • All products

    All tests and materials offered for D-KEFS

    21 options

    From £49.20
    From £49.20
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    - of 21 results
    Prices include VAT where applicable
    • D-KEFS Q-global Technical Manual
      9780749115685 Qualification Level C

      In Stock £184.00

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

      In Stock £184.00

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

      Pack of 25

      In Stock £76.80

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

      3 sets of 6 cards each

      In Stock £114.00

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

      Verbal Fluency and 20 Question Tests, Pack of 25

      In Stock £140.40

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    • 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 £193.20

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

      2 sets of Standard Sorting Cards and 1 Practice Set

      In Stock £114.00

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    • 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 £1,124.40

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    • 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 £1,227.60

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

      Pack of 25

      In Stock £54.00

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

      Pack of 25

      In Stock £76.80

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

      Pack of 25

      In Stock £76.80

      text.product.itembackinstockonpurchaseinfo

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

      Pack of 25

      In Stock £76.80

      text.product.itembackinstockonpurchaseinfo

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

      Pack of 25

      In Stock £76.80

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    • D-KEFS Standard Record Forms
      9780158091150 Qualification Level C

      All nine subtests combined, Pack of 25

      In Stock £252.00

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

      Pack of 25

      In Stock £76.80

      text.product.itembackinstockonpurchaseinfo

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

      Pack of 25

      In Stock £76.80

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

      Pack of 25

      In Stock £76.80

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

      Pad of 25

      In Stock £49.20

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

      In Stock £132.00

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    • DKEFS Q-global Stimulus Book
      9780749183301 Qualification Level C

      In Stock £250.00

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    - of 21 results

    Overview

    Publication date:
    2001

    Age range:
    Ages 8 through 89 years

    Qualification level:
    C

    Qualification Level

     

    Level A

    This approval level enables you to buy our assessments that require no professional degree, accreditation, organization membership, or license/certificate.

    Level B

    This approval level enables you to buy our assessments requiring A or B qualification levels.

    Level C

    This approval level enables you to buy all our assessments.

    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.

    		 

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