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Chinese Versions of the Swanson, Nolan, and Pelham, Version IV (SNAP-IV) Scale and Strengths Difficulties Questionnaire.

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ClinicalTrials.gov Identifier: NCT00491361
Recruitment Status : Completed
First Posted : June 26, 2007
Last Update Posted : November 14, 2012
Information provided by (Responsible Party):
National Taiwan University Hospital

Brief Summary:

Background: Attention-Deficit/Hyperactivity Disorder (ADHD) is a common childhood-onset neuropsychiatric disorder (7.5% in Taiwan) with great impact on individual, family, and society. The diagnosis of ADHD is mainly based on clinical interview of parents and children with assistance of teachers' reports. Self-administered rating scales are useful for screening, assistance of diagnosis, and measurement of symptom changes over time or due to treatment effect. The goals of this study are to establish the norms and psychometric properties of the Chinese version of teacher and parent forms of the Swanson, Nolan, and Pelham, version IV (SNAP-IV) and the teacher, parent, and student forms of the Strengths and Difficulties Questionnaire (SDQ) for future studies on ADHD in Taiwanese populations.

Subjects and Methods: This is a cross-sectional, school-based survey with a multi-stage sampling method. The participants include a school-based sample of 3534 first to eighth graders was recruited from four areas: Taipei City, Taoyuan County, Tainan City and Chiayi County. Among them, 200students will be reassessed at 2-week interval for the test-retest reliability study. The instruments comprise the Chinese version of Child Behavioral Checklist (CBCL), SDQ, SNAP-IV, and Adult ADHD Rating Scale. The informants include student participants older than 10 years old, their parents, and teachers. The main statistical methods include Pearson correlation, intraclass correlation, Chronbach's α for internal consistency, and mixed model to address lack of independence within the same classes and schools.

Anticipated Goals: We expect that this study will reach the following objectives:

  1. to obtain the primitive information about the prevalence of ADHD symptoms and emotional/behavioral problems among children and adolescents in Taipei and Yun-Ling;
  2. to enhance the awareness of school teachers and counselors about ADHD and other behavioral/emotional problems among students;
  3. to establish psychometric properties of the Chinese versions of SNAP-IV and SDQ for future use in clinical, school, and research settings.

Condition or disease
Attention-deficit/Hyperactivity Disorder

Detailed Description:
This protocol was prepared in Chinese

Study Type : Observational
Actual Enrollment : 3600 participants
Official Title: Psychometric Study of the Chinese Versions of the Swanson, Nolan, and Pelham, Version IV (SNAP-IV) Scale and Strengths Difficulties Questionnaire.
Study Start Date : January 2005
Study Completion Date : July 2006

Resource links provided by the National Library of Medicine

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Information from the National Library of Medicine

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Ages Eligible for Study:   6 Years to 16 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
School-based subjects & Clinical subjects with ADHD

Inclusion Criteria:

  • School-based subjects: around 3600 grade 1 to grade 8 students aged 6-16 from four sites in Taiwan and their parents (n = 7200)
  • Clinical subjects with ADHD: children and adolescents ages 6-16, who are diagnosed with ADHD, IQ >70, parents and teachers consent to completion of questionnaires.

Exclusion Criteria:

  • Clinical subjects with ADHD: those who are comorbid with pervasive developmental disorder and/or mental retardation or other severe psychiatric disorders. Oppositional defiant disorder and conduct disorder are not excluded.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00491361

Department of Psychiatry, National Taiwan University Hospital
Taipei, Taiwan, 10002
Sponsors and Collaborators
National Taiwan University Hospital
Principal Investigator: Susan Shur-Fen Gau, MD, PhD Department of Psychiatry, National Taiwan University Hospital

Achenbach, T. M., and Ruffle, T. M. The Child Behavior Checklist and related forms for assessing behavioral/emotional problems and competencies Pediatrics in Review (2000) 21(8):265-71. Becker, A., Woerner, W., Hasselhorn, M., et al. Validation of the parent and teacher SDQ in a clinical sample. European Child & Adolescent Psychiatry (2004) 13 Suppl 2:II11-6. Goodman, R., Ford, T., Corbin, T., et al. Using the Strengths and Difficulties Questionnaire (SDQ) multi-informant algorithm to screen looked-after children for psychiatric disorders. European Child & Adolescent Psychiatry (2004) 13 Suppl 2:II25-31. Yang, H. J., Soong, W. T., Chiang, C. N., et al. Competence and behavioral/emotional problems among Taiwanese adolescents as reported by parents and teachers. Journal of the American Academy of Child & Adolescent Psychiatry (2000) 39(2):232-9.

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: National Taiwan University Hospital
ClinicalTrials.gov Identifier: NCT00491361     History of Changes
Other Study ID Numbers: 9461700519
NTUH95-301 ( Other Identifier: National Taiwan University Hospital )
First Posted: June 26, 2007    Key Record Dates
Last Update Posted: November 14, 2012
Last Verified: August 2008

Keywords provided by National Taiwan University Hospital:
ADHD, SNAP-IV, SDQ, ASRS, reliability, validity

Additional relevant MeSH terms:
Attention Deficit Disorder with Hyperactivity
Attention Deficit and Disruptive Behavior Disorders
Neurodevelopmental Disorders
Mental Disorders