Scale Validation of the Strengths and Difficulties Questionnaire in Iranian Children

  • Ahmad Ghanizadeh Department of Psychiatry, Shiraz University of Medical Sciences, Shiraz, Iran
  • Ahad Izadpanah Department of Psychiatry, Shiraz University of Medical Sciences, Shiraz, Iran
  • Gholamreza Abdollahi Department of Psychiatry, Shiraz University of Medical Sciences, Shiraz, Iran
Keywords: Child psychiatry, Iran, Mass screening, Psychometrics

Abstract

Objective: "n To study the validity and reliability of the Persian version of the Strengths and Difficulties Questionnaire (SDQ).Method: The data for this study was collected from the psychiatric clinic of Hafez hospital and 16 regular schools in four regions of Shiraz using stratified random sampling .The 25 items of the SDQ were completed for 379 boys and 377 girls. The 756 participants aged 3-18 were divided to 3 groups according to age classification.The SDQ was completed by parents, teachers and adolescents according to their age. Clinical interview was performed for 155 children and adolescents who referred to the psychiatric clinic. Results: The mean age of the children was 10.3 years (SD=3.6, range 3-18 years). Children were divided to 3 groups: 1) among the participants 17 (2.3%) were aged 3-4 years,; 2) 409 (54%) were aged 4-11 years, and 3) 330 (43.7%) were aged 11-16 years. Good internal consistencies were found for the self report SDQ scales (mean ل for subscales 0.628). For the teacher SDQ scales, the internal consistencies were lower than the self-report scales (mean ل for subscales 0.454). The lowest internal consistencies were found for the parents SDQ scales. There was sufficient convergent and discriminant validity.Conclusions: The Persian translation of the self reported SDQ has acceptable psychometric properties. Internal consistency of the self-report SDQ was good.The mean inter-informant correlations of the SDQ scales were satisfactory.

References

Goodman R. The Strengths and Difficulties Questionnaire: a research note. J Child Psychol Psychiatry 1997; 38: 581-586.

Goodman R, Scott S. Comparing the Strengths and Difficulties Questionnaire and the Child Behavior Checklist: Is Small Beautiful? J Abnorm Child Psychol 1999; 27: 17-24.

Goodman R, Meltzer H, Bailey V. The strengths and difficulties questionnaire: A pilot study on the validity of the self-report version. Int Rev Psychiatry 2003; 15: 173-177.

Garralda ME, Yates P, Higginson I. Child and adolescent mental health service use. HoNOSCA as an outcome measure. Br J Psychiatry 2000; 177: 52-58.

van Widenfelt BM, Goedhart AW, Treffers PD, Goodman R. Dutch version of the Strengths and Difficulties Questionnaire (SDQ). Eur Child Adolesc Psychiatry 2003; 12: 281-289.

Muris P, Meesters C, van den Berg F. The Strengths and Difficulties Questionnaire (SDQ)--further evidence for its reliability and validity in a community sample of Dutch children and adolescents. Eur Child Adolesc Psychiatry 2003; 12: 1-8.

Thabet AA, Stretch D, Vostanis P. Child mental health problems in Arab children: application of the strengths and difficulties questionnaire. Int J Soc Psychiatry 2000; 46: 266-280.

Mullick MS, Goodman R. Questionnaire screening for mental health problems in Bangladeshi children: a preliminary study. Soc Psychiatry Psychiatr Epidemiol 2001; 36: 94- 99.

Klasen H, Woerner W, Wolke D, Meyer R, Overmeyer S, Kaschnitz W, et al. Comparing the German versions of the Strengths and Difficulties Questionnaire (SDQ-Deu) and the Child Behavior Checklist. Eur Child Adolesc Psychiatry 2000; 9: 271-276.

Koskelainen M, Sourander A, Kaljonen A. The Strengths and Difficulties Questionnaire among Finnish school-aged children and adolescents. Eur Child Adolesc Psychiatry 2000; 9: 277-284.

Goodman R. The extended version of the Strengths and Difficulties Questionnaire as a guide to child psychiatric caseness and consequent burden. J Child Psychol Psychiatry 1999; 40: 791-799.

Smedje H, Broman JE, Hetta J, von Knorring AL. Psychometric properties of a Swedish version of the "Strengths and Difficulties Questionnaire". Eur Child Adolesc Psychiatry 1999; 8: 63-70.

American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV). Washington, DC: American Psychiatric Association; 1994.

Ghanizadeh A, Mohammadi MR, Yazdanshenas A. Psychometric properties of the Farsi translation of the Kiddie Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version. BMC Psychiatry 2006; 6: 10.

Hunt RJ. Percent agreement, Pearson's correlation, and kappa as measures of inter- examiner reliability. J Dent Res 1986; 65: 128- 130.

Streiner DL, Norman GR. Health Measurement Scales: A Practical Guide to their Development and Use. New York: Oxford University Press; 1989.

Hanssen-Bauer K, Heyerdahl S, Eriksson AS. Mental health problems in children and adolescents referred to a national epilepsy center. Epilepsy Behav 2007; 10: 255-262.

How to Cite
1.
Ghanizadeh A, Izadpanah A, Abdollahi G. Scale Validation of the Strengths and Difficulties Questionnaire in Iranian Children. Iran J Psychiatry. 2(2):65-1.
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