方法对比
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| 麦克唐纳Omega (ω)信度系数× | 验证性因子分析 (CFA)× | |
|---|---|---|
| 领域≠ | 心理测量学 | 统计学 |
| 方法族 | Latent structure | Latent structure |
| 起源年份≠ | 1999 | 1969 |
| 提出者≠ | Roderick P. McDonald | Karl Jöreskog |
| 类型≠ | Reliability coefficient / latent variable model | Confirmatory latent variable model |
| 开创性文献≠ | McDonald, R. P. (1999). Test Theory: A Unified Treatment. Lawrence Erlbaum Associates. ISBN: 978-0805830750 | Brown, T. A. (2015). Confirmatory Factor Analysis for Applied Research (2nd ed.). The Guilford Press. ISBN: 978-1462515363 |
| 别名≠ | omega reliability, ω coefficient, omega total, omega hierarchical | Doğrulayıcı Faktör Analizi (CFA), confirmatory factor analysis, measurement model |
| 相关≠ | 6 | 4 |
| 摘要≠ | McDonald's omega is a factor-analysis-based reliability coefficient introduced by Roderick P. McDonald (1999) that quantifies the internal consistency of a composite score without requiring the restrictive assumption that all items contribute equally to the latent factor. It yields two complementary indices: ω_total, which captures overall reliability of the sum score, and ω_hierarchical (ωh), which reports how much of the composite's variance is explained specifically by a single general factor. | Confirmatory factor analysis tests whether a researcher-specified factor structure fits the observed data. Formalised by Karl Jöreskog in 1969, it is the measurement-model step within structural equation modelling and is the standard tool for validating the factorial structure of scales and questionnaires before comparing groups or estimating latent relationships. |
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