The TVCF is a nationally standardized, norm-referenced assessment instrument designed to measure multiple aspects of executive functions principally related to the integrity of the frontal lobes of the brain through the use of several verbally weighted tasks. The TVCF is useful in clinical neuropsychological examinations to detect brain injury and track rehabilitation progress, in the evaluation of language functions and verbal ability, for disability determination under the Individuals with Disabilities Education Act (IDEA), in psychoeducational testing, and in research on brain function, as well as in other applications. The TVCH is also a time- and cost-efficient tool for assessing the executive functioning of individuals with traumatic brain injury, dementia, CNS disease, drug addiction, trauma, and speech/language impairment. The brevity of the TVCF, as well as the particular mental dimensions it assesses, also makes it useful in evaluating children suspected of having or known to have ADHD, emotional disturbances, and sensory or orthopedic impairments.
The TVCF Subtests
The TVCF has four easy-to-administer subtests of primarily verbal and nonverbal tasks that emphasize multiple aspects of verbal fluency, set-shifting and rule induction, concept identification, sequencing, and visual search skills.
- Categorical Fluency measures an individual’s ability to retrieve words that fit within a conceptual category (e.g., animals, things to eat) and fluency of ideation.
- Classification is a verbal measure of shifting and rule induction that is designed as a language-based analog to the well-known Wisconsin Card Sorting Test™. Three scores are obtained: numbers of items correct, number of perseveration errors, and number of categories achieved.
- Letter Naming measures word retrieval by initial sound and fluency of ideation.
- Trails C measures the ability to coordinate high attentional demands, sequencing, visual search capacity, and the ability to shift rapidly between Arabic numerals and linguistic representations of numbers. The trails task is a variation of several other “trail-making” tasks and was taken from the previously published Comprehensive Trail-Making Test (Reynolds, 2003) and completely re-normed with the other TVCF tasks.
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