Behavioral Assessment of Core ADHD Symptoms Using the QbTest.

Reh V; Schmidt M; Lam L; Schimmelmann BG; Hebebrand J; Rief W; Christiansen H

doi:10.1177/1087054712472981

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Journal article

Behavioral Assessment of Core ADHD Symptoms Using the QbTest.

Reh V University of Marburg, Germany verena.reh@staff.uni-marburg.de.
Schmidt M University of Marburg, Germany.
Lam L Practice for Child and Adolescent Psychiatry and Psychotherapy, Landau, Germany.
Schimmelmann BG University of Bern, Switzerland.
Hebebrand J University of Duisburg-Essen, Germany.
Rief W University of Marburg, Germany.
Christiansen H University of Marburg, Germany.

2013-02-06

Published in:

Journal of attention disorders. - 2015

Quantified behavior Test (QbTest)

continuous performance test (CPT)

Attention Deficit Disorder with Hyperactivity

English OBJECTIVE
Hyperactivity, one of the core symptoms of ADHD, has been mostly neglected in neuropsychological assessment of childhood ADHD. The neuropsychological Quantified behavior Test (QbTest) separately assesses all three core symptoms of ADHD on a behavioral level. Factor structure of the QbTest and its concurrent and discriminant validity are presented.

METHOD
An exploratory factor analysis (n = 828 children) was performed. In a second sample (n = 102 children) a Multi-Trait-Multi-Method (MTMM) approach was used for validity analyses.

RESULTS
A three factorial model explained 76 % of the total variance, with the resulting QbTest factors significantly influenced by age and gender. The MTMM approach yielded promising results for discriminant, yet inconsistent findings for concurrent validity between the QbTest and another attention test as well as for Conners' Parent and Teacher Rating Scales.

CONCLUSION
Results indicate that the QbTest may be helpful for the behavioral assessment of childhood ADHD, yet further studies on its psychometric quality and clinical utility are needed.

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