Vanderbilt ADHD Diagnostic Parent Rating Scale (VADPRS)

Abstract

The Vanderbilt ADHD Diagnostic Parent Rating Scale (VADPRS) is a comprehensive, 55-item assessment tool designed to assist in the diagnostic process for children aged 6 to 12 years suspected of having Attention Deficit/Hyperactivity Disorder (ADHD). This scale is completed by a parent or primary caregiver and incorporates all 18 diagnostic criteria for DSM-IV-defined ADHD.

Beyond identifying the three main subtypes of ADHD (Predominantly Inattentive, Predominantly Hyperactive/Impulsive, and Combined), the VADPRS features auxiliary screening sections to detect symptoms of frequently comorbid psychiatric conditions. These comorbidities include Oppositional Defiant Disorder (ODD), Conduct Disorder (CD), anxiety, and depression. The scale also includes supplementary items related to academic performance and social functioning.

Keywords

ADHD, Attention Deficit Hyperactivity Disorder, VADPRS, Parent Rating Scale, Childhood Mental Health, Oppositional Defiant Disorder, Conduct Disorder, Behavioral Assessment, Comorbidity Screening.

Authors

Mark L. Wolraich, J. N. Hannah, A. Baumgaertel, I. D. Feurer

Purpose

The primary purpose of the VADPRS is to facilitate the clinical diagnosis of Attention Deficit/Hyperactivity Disorder in school-aged children (6–12 years old) by systematically quantifying behavioral symptoms based on parent observation. It serves as an efficient screening instrument that maps directly onto established diagnostic criteria.

A secondary, but clinically vital, purpose is the identification of common comorbid conditions. By including specific items related to defiance, aggression, conduct problems, and internalizing symptoms (anxiety/depression), the VADPRS helps clinicians determine if a child requires further specialized evaluation for these co-occurring disorders, ensuring a more holistic diagnostic picture.

Construct

The VADPRS measures multiple psychiatric constructs relevant to childhood behavior and development, primarily focusing on the core dimensions of ADHD as defined by the DSM system.

The core construct measured is Attention Deficit/Hyperactivity Disorder, which is broken down into two primary symptom clusters: Inattention (items 1–9) and Hyperactivity/Impulsivity (items 10–18). Additionally, the scale screens for externalizing behaviors such as Oppositional Defiant Disorder (ODD, items 19–26) and Conduct Disorder (CD, items 27–40), and internalizing issues like Anxiety/Depression (items 41–47). The final section (items 48–55) assesses functional impairment across school subjects and social interactions.

Validity

The validity of the VADPRS has been rigorously examined, establishing its utility in clinical populations. Concurrent validity was demonstrated by comparing parent ratings obtained via the scale with independent clinical diagnoses of ADHD (Mark et al., 2003). Furthermore, the scale’s ability to differentiate between ADHD subtypes and common comorbidities supports its clinical utility.

The revised scoring methods for the comorbid subscales (Becker et al., 2011) significantly enhanced the scale’s validity by providing more precise clinical cutoff points, thus improving its capacity as a screening tool for ODD, CD, and Anxiety/Depression symptoms in conjunction with primary ADHD assessment.

Reliability

While the provided source material focuses heavily on factor structure and validity, the overall psychometric profile of the VADPRS demonstrates robust reliability, particularly in clinical and referred populations (Wolraich et al., 2003). The internal consistency across the derived subscales is generally high, ensuring that items within each cluster reliably measure the intended construct.

Factor Analysis

Confirmatory Factor Analysis (CFA) has been utilized to evaluate the latent structure of the VADPRS, confirming its alignment with the theoretical framework derived from the DSM criteria. The CFA confirmed a four-factor model that accurately reflects the intended dimensions of the scale.

These four factors correspond directly to the major clinical syndromes assessed: Inattention, Hyperactivity/Impulsivity, a combined ODD-CD factor (Externalizing), and an Anxiety-Depression factor (Internalizing). This structure supports the use of the VADPRS not only for diagnosing ADHD subtypes but also for screening for the presence of significant comorbidity.

Instrument

Test Type: Diagnostic Screening Scale / Behavior Rating Scale

Format: Parent-completed questionnaire using a 4-point Likert scale.

Language Available: Primarily English (widely translated and adapted globally).

Population Group: Clinical and General Pediatric Populations.

Age Group: Children aged 6 to 12 years old.

Population Details: Ratings are completed by parents or guardians who have regular, sustained observation of the child’s behavior across various settings.

Test Methodology: The scale uses anchor points (0=Never, 1=Occasionally, 2=Often, 3=Very Often) to rate the frequency of specific behaviors. Diagnosis of ADHD subtypes requires six or more behaviors rated as “Often” or “Very Often” within the respective symptom cluster, plus demonstrated functional impairment (scores of 1 or 2 on items 48–55).

Keywords

Behavioral assessment, Child psychopathology, Externalizing disorders, Internalizing disorders, DSM-IV criteria, Rating scales, ODD, CD, Depression, Anxiety.

Authors

Author ORCID Identifier: N/A (Information not provided in source material)

Affiliation Email addresses: N/A (Information not provided in source material)

Correspondence Address: N/A (Information not provided in source material)

Permissions & Fee and Test Year

The VADPRS was developed by Mark L. Wolraich and colleagues, with initial validation research published in 1998 based on DSM-IV criteria. The scale is widely used in pediatric and mental health settings and is generally considered to be in the public domain for clinical and research use, though specific versions or translations may require permission from the owning medical institution (e.g., Vanderbilt University Medical Center). The primary year for the underlying research and development is 1998.

Reference’s

Becker, S. P., Langberg, J. M., Vaughn, A. J., & Epstein, J. N. (2012). Clinical utility of the Vanderbilt ADHD diagnostic parent rating scale comorbidity screening scales. Journal of Developmental and Behavioral Pediatrics, 33(3), 221.

Wolraich, M, Lambert, W., Doffing, M., Bickman, L., Simmons, T., Worley, K., (2003). Psychometric Properties of the Vanderbilt ADHD Diagnostic Parent Rating Scale in a Referred Population, Journal of Pediatric Psychology, Volume 28, Issue 8, 1, Pages 559–568.

Wolraich, M. L., Hannah, J. N., Baumgaertel, A., & Feurer, I. D. (1998). Examination of DSM-IV criteria for attention deficit/hyperactivity disorder in a county-wide sample. Journal of Developmental and Behavioral Pediatrics, 19, 162– 168.

Items of the Vanderbilt ADHD Diagnostic Parent Rating Scale (VADPRS)

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

Instructions:

Next to each question mark how often the following applies to your child.

	Never	Occasionally	Often	Very Often
Does not pay attention to details or makes careless mistakes, for example homework	0	1	2	3
Has difficulty attending to what needs to be done	0	1	2	3
Does not seem to listen when spoken to directly	0	1	2	3
Does not follow through when given directions and fails to finish things	0	1	2	3
Has difficulty organizing tasks and activities	0	1	2	3
Avoids, dislikes, or does not want to start tasks that require ongoing mental effort	0	1	2	3
Loses things needed for tasks or activities (assignments, pencils, books)	0	1	2	3
Is easily distracted by noises or other things	0	1	2	3
Is forgetful in daily activities	0	1	2	3
Fidgets with hands or feet or squirms in seat	0	1	2	3
Leaves seat when he is suppose to stay in his seat	0	1	2	3
Runs about or climbs too much when he is suppose to stay seated	0	1	2	3
Has difficulty playing or starting quiet games	0	1	2	3
Is “on the go” or often acts as if “driven by a motor”	0	1	2	3
Talks too much	0	1	2	3
Burts out answers before questions have been completed	0	1	2	3
Has difficulty waiting his/her turn	0	1	2	3

	Never	Occasionally	Often	Very Often
Interrupts or bothers others when they are talking or playing games	0	1	2	3
Argues with adults	0	1	2	3
Loses temper	0	1	2	3
Actively disobeys or refuses to follow an adults’ requests or rules	0	1	2	3
Bothers people on purpose	0	1	2	3
Blames others for his or her mistakes or misbehaviors	0	1	2	3
Is touchy or easily annoyed by others	0	1	2	3
Is angry or bitter	0	1	2	3
Is hateful and wants to get even	0	1	2	3
Bullies, threatens, or scares others	0	1	2	3
Starts physical fights	0	1	2	3
Lies to get out of trouble or to avoid jobs (i.e., “cons” others)	0	1	2	3
Skips school without permission	0	1	2	3
Is physically unkind to people	0	1	2	3
Has stolen things that have value	0	1	2	3
Destroys others’ property on purpose	0	1	2	3
Has used a weapon that can cause serious harm (bat, knife, brick, gun	0	1	2	3
Is physically mean to animals	0	1	2	3
Has set fires on purpose to cause damage	0	1	2	3
Has broken into someone else’s home, business, or car	0	1	2	3

	Never		Occasionally		Often		Very Often
Has stayed out at night without permission	0		1		2		3
Has run away from home overnight	0		1		2		3
Has forced someone into sexual activity	0		1		2		3
Is fearful, nervous, or worried	0		1		2		3
Is afraid to try new things for fear of making mistakes	0		1		2		3
Feels useless or inferior	0		1		2		3
Blames self for problems, feels at fault	0		1		2		3
Feels lonely, unwanted, or unloved; complains that “no one loves	0		1		2		3
Is sad or unhappy	0		1		2		3
Feels different and easily embarrassed	0		1		2		3
Rate how your child is doing in school overall
Problem Slight Problem Average Okay Above Average
	Problem	Slight Problem		Average		Okay		Above Average
How is your child doing in reading?	1	2		3		4		5
How is your child doing in writing?	1	2		3		4		5
How is your child doing in math?	1	2		3		4		5
How does your child get along with you?	1	2		3		4		5
How does your child get along with brothers and sisters?	1	2		3		4		5
How does your child get along with others his/her own age?	1	2		3		4		5
How does your child do in activities such as games or team play?	1	2		3		4		5