How well do item parcels represent conceptually defined latent constructs? A two-facet approach
How well do item parcels represent conceptually defined latent constructs? A two-facet approach
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DOI：
10.1207/s15328007sem1102_2
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发表时间：
2004-01-01
影响因子：
6
通讯作者：
Nasser, FM
中科院分区：
文献类型：
--
作者：
Hagtvet, KA;Nasser, FM
本文提出了一种方法，用于检验作为概念上定义的潜在构念指标的项目组合的内容和性质。这种方法的一个重要组成部分是双层面测量模型，该模型将项目和组合作为构念指标的层面。双层面模型检验了在将组合作为代表潜在构念的项目协变集合时所需的假设。根据这种方法，如果双层面模型满足单维性的参数假设，并且项目和组合作为潜在构念的测量具有内容效度，那么组合就是潜在构念可接受的指标。所提出的方法通过考试焦虑测量传统中的担忧构念的单因素模型进行了说明。
This article presents a methodology for examining the content and nature of item parcels as indicators of a conceptually defined latent construct. An essential component of this methodology is the 2-facet measurement model, which includes items and parcels as facets of construct indicators. The 2-facet model tests assumptions required for accepting parcels as aggregates of item covariation in representing the latent construct. According to this methodology, parcels are acceptable indicators of the latent construct if the 2-facet model meets parametric assumptions for unidimensionality and if items and parcels have content validity as measures of the latent construct. The proposed methodology is illustrated using a 1-factor model of the Worry construct in the test anxiety measurement tradition.