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Delis-Kaplan Executive Function System™
(D-KEFS™)

 

Overview: Assess key components of executive functions within verbal and spatial modalities

Age Range: Ages 8 through 89 years

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

Publication Date: 2001

 
 
 

Product Details

The Delis-Kaplan Executive Function System (D-KEFS) is the first nationally standardized set of tests to evaluate higher level cognitive functions in both children and adults.

With nine stand-alone tests, comprehensively assess the key components of executive functions believed to be mediated primarily by the frontal lobe.

Engaging Materials

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

Multiple Uses

  • 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

Two Forms

D-KEFS offers two forms: Standard Record Forms include all nine D-KEFS tests, while the Alternate Record Forms include alternate versions of D-KEFS Sorting, Verbal Fluency, and 20 Questions Tests. An alternate set of Sorting Cards is also available.

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.

Scoring

Scoring Software

The D-KEFS Scoring Assistant®makes generating D-KEFS score reports faster and easier.
  • Record and score the nine D-KEFS subtests as a complete battery or as individual subtests
  • Produce, view, and print score reports in a table format

Hardware Requirements

  • Operating System: Windows XP/Vista/7/8
  • CPU: 400 MHz processor minimum, 1 Ghz recommended
  • Memory 256 MB RAM minimum, 512 recommended
  • Video Card: 2 MB card capable of 1024 x768 resolution and 32-bit color
  • Hard Drive 175 MB free hard disk space
  • Internet Explorer 8.0 or higher: An additional 65 MB of disk space will be needed to complete the installation.

Use of installation discs is not recommended. An Internet connection will be needed to download updated software from pearsonassessmentsupport.com

Training

Pre-recorded Webinars

  • D-KEFS Overview

    Presenter: Gloria Maccow, PhD

    The Delis-Kaplan Executive Function System (D-KEFS) is a nationally standardized set of tests to evaluate higher level cognitive functions in children and adults. With nine stand-alone tests, clinicians can comprehensively assess the key components of executive functions believed to be mediated primarily by the frontal lobe. Clinicians can use the tests to determine how deficits in abstract, creative thinking may impact daily life, and to plan coping strategies and rehabilitation programs tailored to the client’s profile of executive-function strengths and weaknesses. During this hour-and-a-half long webinar, the presenter will describe administration, scoring, and basic interpretation of the D-KEFS tests.

    Date: Oct 28, 2010

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Pricing & Ordering

Order Complete Kit

Order Components

 
Q-interactive® Web-based Administration and Scoring
toggle
 
  • Kits

    Price

    Qty

     
  • Administration Materials

    Price

    Qty

     
  • D-KEFS Stimulus Book
    0158091132
    $185.00
     
  • D-KEFS Design Fluency Test Response Booklets
    0158091175
    $36.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 1
    0158091450
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 2
    0158091469
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 3
    0158091477
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 4
    0158091485
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 5
    0158091493
    $29.00
     
    Pkg of 25
 
 
Manual Scoring
toggle
 
  • Kits

    Price

    Qty

     
  • D-KEFS Complete Kit with Soft Case
    0158091116
    $682.00
     
    Includes Manual, Stimulus Booklet, Sorting Cards (3 sets of 6 cards each), 1 Tower stand with 5 color disks, 25 Standard Record Forms, 25 Design Fluency Response Booklets, and 25 Trail Making Response Booklet sets (each set contains 25 Response Booklets for the 5 Trail Making conditions)
  • D-KEFS Complete Kit in Box
    0158091108
    $630.00
     
    Includes Manual, Stimulus Booklet, Sorting Cards (3 sets of 6 cards each), 1 Tower stand with 5 color disks, 25 Standard Record Forms, 25 Design Fluency Response Booklets, and 25 Trail Making Response Booklet sets (each set contains 25 Response Booklets for the 5 Trail Making conditions)
  • Manuals

    Price

    Qty

     
  • D-KEFS Examiner's Manual
    0158091310
    $148.00
     
  • D-KEFS Technical Manual
    0158091329
    $135.00
     
  • D-KEFS Examiner's and Technical Manual
    0158091124
    $280.00
     
  • Administration Materials

    Price

    Qty

     
  • D-KEFS Standard Record Forms
    0158091159
    $175.00
     
    Pkg of 25. Combination form includes - Trail Making, Verbal Fluency, Design Fluency, Color-Word Interference, Sorting, Twenty Questions, Word Context, Tower, and Proverb.
  • D-KEFS Alternate Record Forms
    0158091205
    $52.50
     
    For D-KEFS Card Sorting, Verbal Fluency, and 20 Questions Tests. Pkg of 25
  • D-KEFS 20 Questions Test Record Forms
    0158091361
    $52.50
     
    Pkg of 25
  • D-KEFS Color-Word Interference Test Record Forms
    015809123X
    $52.50
     
    Pkg of 25
  • D-KEFS Design Fluency Test Record Forms
    0158091353
    $52.50
     
    Pkg of 25
  • D-KEFS Proverb Test Record Forms
    0158091396
    $52.50
     
    Pkg of 25
  • D-KEFS Sorting Test Record Forms
    0158091221
    $52.50
     
    Pkg of 25
  • D-KEFS Tower Test Record Forms
    0158091388
    $52.50
     
    Pkg of 25
  • D-KEFS Trail Making Test Record Forms
    0158091337
    $30.00
     
    Pad of 25
  • D-KEFS Verbal Fluency Test Record Forms
    0158091345
    $52.50
     
    Pkg of 25
  • D-KEFS Word Context Test Record Forms
    015809137X
    $52.50
     
    Pkg of 25
  • D-KEFS Design Fluency Test Response Booklets
    0158091175
    $36.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 1
    0158091450
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 2
    0158091469
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 3
    0158091477
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 4
    0158091485
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 5
    0158091493
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Conditions 1-5
    0158091191
    $135.00
     
    Pkg of 25 of each Condition
  • Additional Materials

    Price

    Qty

     
  • D-KEFS Alternate Set of Sorting Cards
    0158091213
    $80.00
     
    3 sets of 6 cards each
  • D-KEFS Tower and set of 5 Disks (blue)
    0158091140
    $157.00
     
  • D-KEFS Card Sorting Test
    0158091183
    $80.00
     
    (2 sets of standard Sorting Cards and 1 practice set)
  • D-KEFS Stimulus Book
    0158091132
    $185.00
     
 
 
Software-based Scoring and Reporting
toggle
 
  • Kits

    Price

    Qty

     
  • D-KEFS Complete Kit in a Soft-Sided Case with D-KEFS Scoring Assistant for Windows
    0158091426
    $780.00
     

    Includes Manual, Stimulus Booklet, Sorting Cards (3 sets of 6 cards each), 1 Tower stand with 5 color disks, 25 Standard Record Forms, 25 Design Fluency Response Booklets, and 25 Trail Making Response Booklet sets (each set contains 25 Response Booklets for the 5 Trail Making conditions), CD-ROM version Scoring Assistant.

  • D-KEFS Complete Kit in box with D-KEFS Scoring Assistant for Windows
    015809140X
    $728.00
     

    Includes Manual, Stimulus Booklet, Sorting Cards (3 sets of 6 cards each), 1 Tower stand with 5 color disks, 25 Standard Record Forms, 25 Design Fluency Response Booklets, and 25 Trail Making Response Booklet sets (each set contains 25 Response Booklets for the 5 Trail Making conditions), CD-ROM version Scoring Assistant.

  • Manuals

    Price

    Qty

     
  • D-KEFS Examiner's Manual
    0158091310
    $148.00
     
  • D-KEFS Technical Manual
    0158091329
    $135.00
     
  • D-KEFS Examiner's and Technical Manual
    0158091124
    $280.00
     
  • Administration Materials

    Price

    Qty

     
  • D-KEFS Standard Record Forms
    0158091159
    $175.00
     
    Pkg of 25. Combination form includes - Trail Making, Verbal Fluency, Design Fluency, Color-Word Interference, Sorting, Twenty Questions, Word Context, Tower, and Proverb.
  • D-KEFS Alternate Record Forms
    0158091205
    $52.50
     
    For D-KEFS Card Sorting, Verbal Fluency, and 20 Questions Tests. Pkg of 25
  • D-KEFS 20 Questions Test Record Forms
    0158091361
    $52.50
     
    Pkg of 25
  • D-KEFS Color-Word Interference Test Record Forms
    015809123X
    $52.50
     
    Pkg of 25
  • D-KEFS Design Fluency Test Record Forms
    0158091353
    $52.50
     
    Pkg of 25
  • D-KEFS Proverb Test Record Forms
    0158091396
    $52.50
     
    Pkg of 25
  • D-KEFS Sorting Test Record Forms
    0158091221
    $52.50
     
    Pkg of 25
  • D-KEFS Tower Test Record Forms
    0158091388
    $52.50
     
    Pkg of 25
  • D-KEFS Trail Making Test Record Forms
    0158091337
    $30.00
     
    Pad of 25
  • D-KEFS Verbal Fluency Test Record Forms
    0158091345
    $52.50
     
    Pkg of 25
  • D-KEFS Word Context Test Record Forms
    015809137X
    $52.50
     
    Pkg of 25
  • D-KEFS Design Fluency Test Response Booklets
    0158091175
    $36.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 1
    0158091450
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 2
    0158091469
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 3
    0158091477
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 4
    0158091485
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Condition 5
    0158091493
    $29.00
     
    Pkg of 25
  • D-KEFS Trail Making Response Booklets - Conditions 1-5
    0158091191
    $135.00
     
    Pkg of 25 of each Condition
  • Scoring Software

    Price

    Qty

     
  • D-KEFS Scoring Assistant
    0158984188
    $99.00
     
    (CD-ROM Windows)
  • Additional Materials

    Price

    Qty

     
  • D-KEFS Alternate Set of Sorting Cards
    0158091213
    $80.00
     
    3 sets of 6 cards each
  • D-KEFS Tower and set of 5 Disks (blue)
    0158091140
    $157.00
     
  • D-KEFS Card Sorting Test
    0158091183
    $80.00
     
    (2 sets of standard Sorting Cards and 1 practice set)
  • D-KEFS Stimulus Book
    0158091132
    $185.00
     
 
 
 
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