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NICHQ Vanderbilt Assessment Scales
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About Scale Name
Scale Name
NICHQ Vanderbilt Assessment Scales
Author Details
Mark L. Wolraich
Translation Availability
Not Sure
Background/Description
The NICHQ Vanderbilt Assessment Scales are a set of rating scales used to assess attention deficit hyperactivity disorder (ADHD) in children ages 6-12. The VAS was developed by the National Institute for Children’s Health Quality (NICHQ) and is one of the most widely used ADHD assessment tools in the world.
The VAS consists of two parts: a symptom assessment scale and a performance assessment scale. The symptom assessment scale asks about 18 ADHD symptoms, including both inattentive and hyperactive-impulsive symptoms. The performance assessment scale asks about the child’s academic performance, social skills, and behavior in different settings.
The VAS is completed by parents and teachers, and the scores from each informant are combined to create a total score. The total score is then used to determine whether the child meets diagnostic criteria for ADHD.
The VAS was first published in 2002 and has since been updated twice, in 2011 and 2019. The VAS is a widely used ADHD assessment tool and has been translated into over 20 languages.
Administration, Scoring and Interpretation
- The clinician should introduce the VAS to the parent or teacher and explain the purpose of the assessment.
- The clinician should read the instructions for each item aloud and ask the parent or teacher to rate the child’s symptoms.
- The clinician should answer any questions that the parent or teacher may have.
- The clinician should collect the completed VAS and score it according to the instructions.
Reliability and Validity
The NICHQ Vanderbilt Assessment Scales (VAS) have been shown to be reliable and valid in a number of studies.
Reliability refers to the consistency of the scores on the VAS. In other words, if a child takes the VAS twice, they should get similar scores both times. The VAS has good reliability, with internal consistency coefficients (Cronbach’s alpha) of 0.91 for the parent version and 0.89 for the teacher version. This means that the scores on the VAS are consistent within each informant.
Validity refers to the accuracy of the scores on the VAS. In other words, the scores on the VAS should be related to other measures of ADHD. The VAS has good validity, with correlations of 0.70-0.80 with other ADHD rating scales. This means that the scores on the VAS are related to other measures of ADHD, which suggests that the VAS is a valid measure of ADHD symptoms.
The VAS has also been shown to be effective in diagnosing ADHD. In a study of children ages 6-12, the VAS had a sensitivity of 80% and a specificity of 75%. This means that the VAS was able to correctly identify 80% of children with ADHD and 75% of children without ADHD.
Available Versions
Parent Informants 55-Items
Teacher Informants 43-Items
Reference
Wolraich, M. L., Lambert, W. E., Doffing, M. A., Bickman, L. B., Simmons, T., & Worley, K. (2019). NICHQ Vanderbilt Assessment Scales. Version 3.0. Seattle, WA: National Institute for Children’s Health Quality.
Important Link
Scale File:
Frequently Asked Questions
What are the NICHQ Vanderbilt Assessment Scales?
The NICHQ Vanderbilt Assessment Scales are tools used to evaluate symptoms of attention-deficit/hyperactivity disorder (ADHD).
How many versions of the NICHQ Vanderbilt Assessment Scales are available?
Two versions are available: parent and teacher rating scales.
What age group are the NICHQ Vanderbilt Assessment Scales designed for?
They are designed for children aged 6 to 12 years.
How long does it take to complete the NICHQ Vanderbilt Assessment Scales?
It typically takes about 10 to 15 minutes to complete the scales.
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