Scholarlink

Background <p>The Positive Youth Development–Very Short Form (PYD-VSF) is a brief measure of the Five Cs of positive youth development; however, its measurement properties have not been evaluated among Persian-speaking adolescents.</p> Objective <p>This cross-sectional psychometric study examined the structural validity, reliability, measurement invariance, and external construct validity of the Persian PYD-VSF in a school-based adolescent sample.</p> Methods <p>Participants were 740 Iranian adolescents aged 13–18 years (<i>M</i> = 15.01, <i>SD</i> = 1.57). The PYD-VSF was translated using forward–backward translation, expert review, and cognitive pretesting. Structural validity was evaluated using confirmatory factor analysis and bifactor modeling with the weighted least squares mean- and variance-adjusted estimator. Reliability was examined using Cronbach’s alpha, McDonald’s omega (ω), composite reliability, omega hierarchical, and test–retest intraclass correlation coefficients. Measurement invariance across gender and developmental stage was tested using multi-group confirmatory factor analysis.</p> Results <p>The bifactor model showed slightly better fit than the correlated five-factor model (CFI = 0.99, TLI = 0.99, RMSEA = 0.03, SRMR = 0.02). Items loaded substantially on the general PYD factor (λ = 0.49–0.63). Omega hierarchical (ωh = 0.78) supported the interpretability of the total score, whereas explained common variance (ECV = 0.46) and omega hierarchical subscale coefficients (ωhs = 0.36–0.51) indicated meaningful but comparatively attenuated domain-specific variance. Internal consistency (α = 0.91, ω = 0.89), test–retest reliability (ICC(2,1) = 0.78, 95% CI [0.72, 0.84]), and measurement invariance were supported. PYD scores showed theoretically consistent positive associations with adaptive constructs and negative associations with depressive symptoms and internet addiction.</p> Conclusions <p>The Persian PYD-VSF provides preliminary cross-sectional evidence of acceptable psychometric performance among Iranian adolescents. Findings support use of the total PYD score as the primary indicator, while subscale scores should be interpreted cautiously and mainly for theory-driven or exploratory purposes.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Psychometric Evaluation of the Persian Positive Youth Development Very Short Form Among Iranian Adolescents: Evidence from Confirmatory Factor and Bifactor Modeling

  • 期刊论文

  • 发表日期：

    2026年7月3日

查看全文
  • Nabi Nazari,
  • Ezatolah Ghadampour,
  • Mohammad Abbasi

摘要

Background

The Positive Youth Development–Very Short Form (PYD-VSF) is a brief measure of the Five Cs of positive youth development; however, its measurement properties have not been evaluated among Persian-speaking adolescents.

Objective

This cross-sectional psychometric study examined the structural validity, reliability, measurement invariance, and external construct validity of the Persian PYD-VSF in a school-based adolescent sample.

Methods

Participants were 740 Iranian adolescents aged 13–18 years (M = 15.01, SD = 1.57). The PYD-VSF was translated using forward–backward translation, expert review, and cognitive pretesting. Structural validity was evaluated using confirmatory factor analysis and bifactor modeling with the weighted least squares mean- and variance-adjusted estimator. Reliability was examined using Cronbach’s alpha, McDonald’s omega (ω), composite reliability, omega hierarchical, and test–retest intraclass correlation coefficients. Measurement invariance across gender and developmental stage was tested using multi-group confirmatory factor analysis.

Results

The bifactor model showed slightly better fit than the correlated five-factor model (CFI = 0.99, TLI = 0.99, RMSEA = 0.03, SRMR = 0.02). Items loaded substantially on the general PYD factor (λ = 0.49–0.63). Omega hierarchical (ωh = 0.78) supported the interpretability of the total score, whereas explained common variance (ECV = 0.46) and omega hierarchical subscale coefficients (ωhs = 0.36–0.51) indicated meaningful but comparatively attenuated domain-specific variance. Internal consistency (α = 0.91, ω = 0.89), test–retest reliability (ICC(2,1) = 0.78, 95% CI [0.72, 0.84]), and measurement invariance were supported. PYD scores showed theoretically consistent positive associations with adaptive constructs and negative associations with depressive symptoms and internet addiction.

Conclusions

The Persian PYD-VSF provides preliminary cross-sectional evidence of acceptable psychometric performance among Iranian adolescents. Findings support use of the total PYD score as the primary indicator, while subscale scores should be interpreted cautiously and mainly for theory-driven or exploratory purposes.