The validity of the SNAP-IV in children displaying ADHD symptoms
Hall, Charlotte L. Guo, Boliang Valentine, Althea Z. Groom, Madeleine J. Daley, David Sayal, Kapil Hollis, Chris P.
Hall, Charlotte L.
Guo, Boliang
Valentine, Althea Z.
Groom, Madeleine J.
Daley, David
Sayal, Kapil
Hollis, Chris P.
Abstract
The Swanson, Nolan, and Pelham Rating Scale (SNAP-IV) is a widely used scale that measures the core symptoms of attention deficit hyperactivity disorder (ADHD). However, there are contradictory findings regarding factor structure. Factor structure and measurement equivalence/invariance analysis on parent and teacher SNAP-IV for children referred for an ADHD assessment ( N = 250; 6-17 years), revealed a two-factor structure provided the best fit. SNAP-IV scores were also compared with clinician diagnosis of ADHD and research diagnoses of ADHD and hyperkinetic disorder. Parent ratings of inattention and hyperactivity/impulsivity were good predictors of research but not clinician diagnosis. For teacher ratings, only hyperactivity/impulsivity scores were associated with research and clinician diagnosis. SNAP-IV scores showed high sensitivity but low specificity to clinician diagnosis. The SNAP-IV is a valid outcome measure for use in randomized controlled trials and clinical settings, and is best used as a screening rather than a diagnostic tool for ADHD. (PsycInfo Database Record (c) 2020 APA, all rights reserved) (Source: journal abstract)
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2020
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Hall, C. L., Guo, B., Valentine, A. Z., Groom, M. J., Daley, D., Sayal, K. & Hollis, C. P. (2020). The validity of the SNAP-IV in children displaying ADHD symptoms. Assessment, 27 (6), pp.1258-1271.