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Delis-Kaplan Executive Function System

(D-KEFS)

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.

Age range:
Ages 8 through 89 years
Publication date:
2001
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

Pricing & Ordering

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. Software-based scoring and reporting is compatible with Windows XP, Vista, & 7 only. 

 

  • D-KEFS Stimulus Book

    0158091132

    Pricing and Qualification

    Price: $231.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Design Fluency Test Response Booklets

    0158091175

    Pkg of 25

    Pricing and Qualification

    Price: $41.25

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 1

    0158091450

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 2

    0158091469

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 3

    0158091477

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 4

    0158091485

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 5

    0158091493

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Complete Kit in Box

    0158091108

    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)

    Pricing and Qualification

    Price: $818.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Complete Kit with Soft Case

    0158091116

    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)

    Pricing and Qualification

    Price: $870.25

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Examiner's Manual

    0158091310

    Pricing and Qualification

    Price: $170.00

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Technical Manual

    0158091329

    Pricing and Qualification

    Price: $170.00

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Examiner's and Technical Manual

    0158091124

    Pricing and Qualification

    Price: $324.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Standard Record Forms

    0158091159

    Pkg of 25. Combination form includes - Trail Making, Verbal Fluency, Design Fluency, Color-Word Interference, Sorting, Twenty Questions, Word Context, Tower, and Proverb.

    Pricing and Qualification

    Price: $194.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Design Fluency Test Response Booklets

    0158091175

    Pkg of 25

    Pricing and Qualification

    Price: $41.25

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Alternate Record Forms

    0158091205

    For D-KEFS Card Sorting, Verbal Fluency, and 20 Questions Tests. Pkg of 25

    Pricing and Qualification

    Price: $108.25

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Sorting Test Record Forms

    0158091221

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Color-Word Interference Test Record Forms

    015809123X

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Test Record Forms

    0158091337

    Pad of 25

    Pricing and Qualification

    Price: $38.00

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Verbal Fluency Test Record Forms

    0158091345

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Design Fluency Test Record Forms

    0158091353

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS 20 Questions Test Record Forms

    0158091361

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Word Context Test Record Forms

    015809137X

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Tower Test Record Forms

    0158091388

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Proverb Test Record Forms

    0158091396

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 1

    0158091450

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 2

    0158091469

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 3

    0158091477

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 4

    0158091485

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 5

    0158091493

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Conditions 1-5

    0158091191

    Pkg of 25 of each Condition

    Pricing and Qualification

    Price: $149.25

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Tower and set of 5 Disks (blue)

    0158091140

    Pricing and Qualification

    Price: $170.00

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Stimulus Book

    0158091132

    Pricing and Qualification

    Price: $231.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Card Sorting Test

    0158091183

    (2 sets of standard Sorting Cards and 1 practice set)

    Pricing and Qualification

    Price: $87.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Alternate Set of Sorting Cards

    0158091213

    3 sets of 6 cards each

    Pricing and Qualification

    Price: $87.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Complete Kit in box with D-KEFS Scoring Assistant for Windows

    015809140X

    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.

    Pricing and Qualification

    Price: $898.75

    Qualification Level C

    Ordering

    In stock

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

    0158091426

    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.

    Pricing and Qualification

    Price: $950.25

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Examiner's Manual

    0158091310

    Pricing and Qualification

    Price: $170.00

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Technical Manual

    0158091329

    Pricing and Qualification

    Price: $170.00

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Examiner's and Technical Manual

    0158091124

    Pricing and Qualification

    Price: $324.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Standard Record Forms

    0158091159

    Pkg of 25. Combination form includes - Trail Making, Verbal Fluency, Design Fluency, Color-Word Interference, Sorting, Twenty Questions, Word Context, Tower, and Proverb.

    Pricing and Qualification

    Price: $194.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Design Fluency Test Response Booklets

    0158091175

    Pkg of 25

    Pricing and Qualification

    Price: $41.25

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Alternate Record Forms

    0158091205

    For D-KEFS Card Sorting, Verbal Fluency, and 20 Questions Tests. Pkg of 25

    Pricing and Qualification

    Price: $108.25

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Sorting Test Record Forms

    0158091221

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Color-Word Interference Test Record Forms

    015809123X

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Test Record Forms

    0158091337

    Pad of 25

    Pricing and Qualification

    Price: $38.00

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Verbal Fluency Test Record Forms

    0158091345

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Design Fluency Test Record Forms

    0158091353

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS 20 Questions Test Record Forms

    0158091361

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Word Context Test Record Forms

    015809137X

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Tower Test Record Forms

    0158091388

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Proverb Test Record Forms

    0158091396

    Pkg of 25

    Pricing and Qualification

    Price: $58.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 1

    0158091450

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 2

    0158091469

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 3

    0158091477

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 4

    0158091485

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Condition 5

    0158091493

    Pkg of 25

    Pricing and Qualification

    Price: $33.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Trail Making Response Booklets - Conditions 1-5

    0158091191

    Pkg of 25 of each Condition

    Pricing and Qualification

    Price: $149.25

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Scoring Assistant

    0158984188

    (CD-ROM Windows)

    Pricing and Qualification

    Price: $102.00

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Tower and set of 5 Disks (blue)

    0158091140

    Pricing and Qualification

    Price: $170.00

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Stimulus Book

    0158091132

    Pricing and Qualification

    Price: $231.75

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Card Sorting Test

    0158091183

    (2 sets of standard Sorting Cards and 1 practice set)

    Pricing and Qualification

    Price: $87.50

    Qualification Level C

    Ordering

    In stock

  • D-KEFS Alternate Set of Sorting Cards

    0158091213

    3 sets of 6 cards each

    Pricing and Qualification

    Price: $87.50

    Qualification Level C

    Ordering

    In stock

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.

At a glance

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Webinars

The following training events are available for D-KEFS.