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

Delis-Kaplan Executive Function System™ (D-KEFS™)
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Assess key components of executive functions

Age Range

8 - 89 years


Individual - 90 minutes

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


With nine new stand-alone tests, the D-KEFS™ provides a comprehensive assessment of higher-level thinking and cognitive flexibility – key components of executive functioning believed to be mediated primarily by the frontal lobe.

The tests, administered as a complete set to both children and adults in 90 minutes, or individually in varying timeframes, assess vital executive functions such as flexibility of thinking, inhibition, problem solving, planning, impulse control, concept formation, abstract thinking, and creativity in both verbal and spatial modalities.

Use D-KEFS™ results to:

  •    Assess the integrity of the frontal system of the brain
  •    Determine how deficits in abstract, creative thinking may impact upon an individual’s daily life
  •    Plan coping strategies and rehabilitation programmes tailored to each patient’s profile of                                                  executive function of strengths and weaknesses.

D-KEFS™ is the first set of standardised tests to evaluate higher-level cognitive functions in individuals as young as 8 years old.

While IQ and basic achievement tests are vital for assessing certain domains of cognitive abilities, they do not provide information about what are arguably a child’s most important cognitive abilities, the capacity to engage in creative, abstract thinking. D-KEFS™ allows you to identify and then address executive function deficits in children who perform well on IQ and achievement tests.

D-KEFS™ is individually administered, and its game-like format is designed to be interesting and engaging for examinees, encouraging optimal performance without providing “right/wrong” feedback that can create frustration in some children and adults.

Two forms are available: Standard Record Forms include all nine D-KEFS™ tests, with alternate versions for three of the tests that are most susceptible to practice effects; D-KEFS™ Sorting, Verbal Fluency and 20 Questions Tests.

D-KEFS™ is correlated with the Wechsler Abbreviated Scale of Intelligence™ (WASI™) and the California Verbal Learning Test-Second Edition (CVLT-II), providing information concerning the role of intellectual ability and memory on D-KEFS™ performance.

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

Enhance the scoring process with convenient software that dramatically reduces your scoring time.

The D-KEFS™ Scoring Assistant allows you to generate D-KEFS™ reports quickly and easily. Record and score the nine D-KEFS™ subtests as a complete battery or as individual subtests – then produce, view and print reports from your own PC.

Generate reports in a tabular or graphic format, choosing the layout that best fits your needs.

The operating systems supported by our software are Windows XP | Vista | 7. Ensure your computer meets the minimum software requirements prior to purchasing our software.

Product Items

D-KEFS Kit: 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 Bookl for 5 Trail Making)
Item # MPS02-67998
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D-KEFS Kit with Scoring Assistant: All components of the Kit as well as CD Rom for Windows®
Item # MPS02-67981
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D-KEFS Scoring Assistant: CD Rom for Windows
Item # MPS02-984186
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D-KEFS Standard Record Forms (All Nine Subtests Combined), (Pack of 25)
Item # MPS02-091150
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D-KEFS Sorting Test - Set of Cards, 2 Sets of Standard Sorting Cards and 1 Practice Set
Item # MPS02-091181
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D-KEFS Colour-Word Interference Test Record Forms (Pack of 25)
Item # MPS02-091235
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D-KEFS Design Fluency Test Record Forms (Pack of 25)
Item # MPS02-091358
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D-KEFS Design Fluency Test Response Booklets (Pack of 25)
Item # MPS02-091174
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D-KEFS Proverb Test Record Forms (Pack of 25)
Item # MPS02-091396
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D-KEFS 20 Questions Test Record Forms (Pack of 25)
Item # MPS02-091365
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D- KEFS Tower Test Record Forms (Pack of 25)
Item # MPS02-091389
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D- KEFS Verbal Fluency Test Record Forms (Pack of 25)
Item # MPS02-091341
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D- KEFS Trail Making Test Record Forms (Pad of 25)
Item # MPS02-091334
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D- KEFS Word Context Test Record Forms (Pack of 25)
Item # MPS02-091372
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