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. 2008 Feb 19;17(1):35–44. doi: 10.1002/mpr.237

Psychometric properties of the Chinese version of the Swanson, Nolan, and Pelham, version IV scale – parent form

Susan Shur‐Fen Gau 1,2,✉, Chi‐Yung Shang 3, Shih‐Kai Liu 4, Chien‐Ho Lin 5, James M Swanson 6, Yu‐Chih Liu 7, Chang‐Ling Tu 1
PMCID: PMC6878250  PMID: 18286459

Abstract

This study aimed to establish the psychometric properties of parent ratings on the Chinese version of the Swanson, Nolan, and Pelham IV scale (SNAP‐IV) in a school‐based sample of 3534 students in grades 1 to 8 from two cities and two suburbs in Taiwan and 189 children diagnosed with attention deficit/hyperactivity disorder (ADHD) (aged 6 to 15) consecutively recruited from a medical center in Taipei. Parents completed the Chinese versions of the SNAP‐IV, Strengths and Difficulties Questionnaire, and Child Behavior Checklist. The Chinese SNAP‐IV demonstrated similar three factor structure (Inattention, Hyperactivity/Impulsivity, and Oppositional) as its English version, and satisfactory test–retest reliability (intraclass correlation = 0.59∼0.72), internal consistency (alpha = 0.88∼0.90), concurrent validity (Pearson correlations = 0.56∼0.72), and discriminant validity. Boys scored higher than girls across the eight school grade levels. The SNAP‐IV clearly distinguished children with ADHD from school‐based participants. Comorbidity with oppositional defiant disorder/conduct disorder predicted higher SNAP‐IV scores among children with ADHD. Our findings suggest that the Chinese SNAP‐IV is a reliable and valid instrument for rating ADHD‐related symptoms in both clinical and community settings in Taiwan. Copyright © 2008 John Wiley & Sons, Ltd.

Keywords: SNAP‐IV, parent report, Chinese version, reliability, validity, ADHD

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