What does the D-KEFS verbal fluency test measure?

2019-11-13 by No Comments

What does the D-KEFS verbal fluency test measure?

The D-KEFS Verbal Fluency Test (VF) is comprised of three testing conditions: Letter Fluency, Category Fluency, and Category Switching. The VF measures multiple aspects of verbal behavioural productivity and cognitive flexibility. Alternate forms with normative data are provided for the D-KEFS Verbal Fluency Test.

How do you test for verbal fluency?

  1. The verbal fluency test (VFT) is a short screening test that evaluates cognitive function.
  2. The person is asked to list all of the animals he can think of in the next 60 seconds.
  3. To score the VFT, count up the total number of animals or words that the individual is able to produce.

What does KEFS tower test measure?

Tower Test (D-KEFS) This test measures spatial planning, rule learning, inhibition of impulsive responding, inhibition of perseverative responding, and establishing and maintaining instructional set.

What does the KEFS measure?

The Delis–Kaplan Executive Function System (D-KEFS) is a neuropsychological test used to measure a variety of verbal and nonverbal executive functions for both children and adults (ages 8–89 years).

What part of the brain controls verbal fluency?

Some previous neuroimaging and lesion studies have suggested that category fluency (semantic-based word retrieval) is mediated primarily by temporal cortex, while letter fluency (letter-based word retrieval) is mediated primarily by frontal cortex.

What does D KEFS stand for?

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.

What is the design fluency test?

Tests of Design Fluency (DF), also known as “figural” or “nonverbal” fluency, represent a method of assessment of executive functioning, commonly used in research and clinical settings. Examinees draw as many different designs as possible in one minute, while avoiding repeating prior designs.

How do you assess executive functioning?

For an effective assessment of executive functions, a variety of measures should be used including: formal one to one assessment, standardized checklists, observations, interviews and work samples. From these, conclusions may be drawn on the use of executive functions in a particular student.

What is verbal ability and fluency?

The verbal fluency test is a short test of verbal functioning (e.g., Lezak et al., 2012). In the standard versions of the tasks, participants are given 1 min to produce as many unique words as possible within a semantic category (category fluency) or starting with a given letter (letter fluency).

Is verbal fluency and executive function?

Measures of phonemic and semantic verbal fluency, such as FAS and Animal Fluency (Benton, Hamsher, & Sivan, 1989), are often thought to be measures of executive functioning (EF). However, some studies (Henry & Crawford, 2004a , 2004b , 2004c ) have noted there is also a language component to these tasks.

What is the D KEFS used for?

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.

What kind of test is the verbal fluency test?

Verbal Fluency Test (VF) is comprised of three testing conditions: Letter Fluency, Category Fluency, and Category Switching. The VF measures multiple aspects of verbal behavioural productivity and cognitive flexibility.

What are the three conditions of verbal fluency?

There are three conditions in the verbal fluency task: letter (F,A, and S), category (animals and boys’ names) and switch (switching between fruits and furniture). The conditions are administered to all participants in this order. Participants were given 60 seconds to verbally generate items in each condition.

What are the conditions for the VF test?

Verbal Fluency Test. VF is an executive function test with three conditions: phonemic fluency (child must name words beginning with a certain letter), semantic fluency (child must name words that fall into certain categories), and semantic switching.

What are the components of the D-KEFS test?

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.