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ArtikelParent and Teacher SNAP-IV Ratings of Attention Deficit Hyperactivity Disorder Symptoms: Psychometric Properties and Normative Ratings From a School District Sample  
Oleh: Bussing, Regina ; Fernandez, Melanie ; Harwood, Michelle ; Wei, Hou ; Garvan, Cynthia Wilson ; Eyberg, Sheila M. ; Swanson, James M.
Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Assessment vol. 15 no. 3 (Sep. 2008), page 317-328.
Topik: assessment; attention deficit hyperactivity disorder; children; likelihood ratios; norms; SNAP-IV; reliability; validity
Fulltext: 317.pdf (142.41KB)
Isi artikelTo examine Swanson, Nolan, and Pelham–IV (SNAP-IV) psychometric properties, parent (N= 1,613) and teacher (N= 1,205) data were collected from a random elementary school student sample in a longitudinal attention deficit hyperactivity disorder (ADHD) detection study. SNAP-IV reliability was acceptable. Factor structure indicated two ADHD factors and an oppositional defiant disorder (ODD) factor. Parent and teacher scores varied by gender and poverty status (d = .49-.56) but not age; only teacher scores varied by race (d = .25-.55). Screening and diagnostic utility was evaluated with likelihood ratios (LRs) and posttest probabilities. Parent SNAP-IV scores above 1.2 increased probability of concern (LR > 10) and above 1.8, of ADHD diagnosis (LR > 3). Teacher hyperactivity/impulsivity scores above 1.2 and inattention scores above 1.8 increased probabilities of concern only (LR = 4.2 and >5, respectively). Higher teacher scores for African American children and race differences in measurement models require future study.
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