V2EX scalar invariance

Scalar Invariance

定义 Definition(中文)

scalar invariance(标量不变性):心理测量学/结构方程模型(SEM)中“测量不变性”的一个层级,指在不同群体(如性别、文化、时间点)之间,量表题项的截距/阈值相等(在常见流程中通常也包含已满足的因子载荷相等)。满足标量不变性时,通常才可以较有把握地比较不同群体的潜变量均值
(注:在分类题项中常对应“阈值不变性”。)

发音 Pronunciation(IPA)

/skelr nvrins/

例句 Examples

Scalar invariance means the item intercepts are equal across groups.
标量不变性意味着各群体之间题项截距相等。

After establishing configural and metric invariance, the researchers tested scalar invariance to justify comparing latent mean differences between cultures.
在建立构型不变性与度量不变性之后,研究者检验标量不变性,以证明可以比较不同文化之间的潜变量均值差异。

词源 Etymology(中文)

scalar 来自 scale(尺度/量表)相关用法,强调“与量表的数值水平有关”;invariance 源自拉丁语系词根,意为“保持不变”。合在起,scalar invariance 直译为“标量层面的不变性”,在测量理论中具体化为“截距/阈值不随群体而变”。

相关词 Related Words

文献与著作中的用例 Notable Works

  • Principles and Practice of Structural Equation Modeling(Rex B. Kline)
  • Structural Equation Modeling with Mplus: Basic Concepts, Applications, and Programming(Barbara M. Byrne)
  • Confirmatory Factor Analysis for Applied Research(Timothy A. Brown)
  • Meredith, W. (1993). “Measurement invariance, factor analysis and factorial invariance.”(经典论文,讨论测量/因子不变性框架)
  • Vandenberg, R. J., & Lance, C. E. (2000). “A review and synthesis of the measurement invariance literature…”(综述性论文,系统梳理含标量不变性在内的层级检验)
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