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  • 标题:Psychometric properties of the Social Cognitive Theory questionnaire for physical activity in a sample of Iranian adolescent girl students
  • 本地全文:下载
  • 作者:M.S. Ardestani ; S. Niknami ; A. Hidarnia E. Hajizadeh
  • 期刊名称:Eastern Mediterranean Health Journal
  • 印刷版ISSN:1020-3397
  • 出版年度:2016
  • 卷号:22
  • 期号:5
  • 出版社:World Health Organization
  • 摘要:

    This research examined the validity and reliability of a researcher-developed questionnaire based on Social Cognitive Theory (SCT) to assess the physical activity behaviour of Iranian adolescent girls (SCT-PAIAGS). Psychometric properties of the SCT-PAIAGS were assessed by determining its face validity, content and construct validity as well as its reliability. In order to evaluate factor structure, cross-sectional research was conducted on 400 high-school girls in Tehran. Content validity index, content validity ratio and impact score for the SCT-PAIAGS varied between 0.97–1, 0.91–1 and 4.6–4.9 respectively. Confirmatory factor analysis approved a six-factor structure comprising self-efficacy, self-regulation, family support, friend support, outcome expectancy and self-efficacy to overcoming impediments. Factor loadings, t-values and fit indices showed that the SCT model was fitted to the data. Cronbach’s α-coefficient ranged from 0.78 to 0.85 and intraclass correlation coefficient from 0.73 to 0.90.

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