To parcel or not to parcel: Exploring the question, weighing the merits
To parcel or not to parcel: Exploring the question, weighing the merits
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DOI：
10.1207/s15328007sem0902_1
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发表时间：
2002-01-01
影响因子：
6
通讯作者：
Widaman, KF
中科院分区：
文献类型：
--
作者：
Little, TD;Cunningham, WA;Widaman, KF
我们研究了在结构方程建模（SEM）程序中使用物品包裹作为显变量的有争议的做法。在详细阐述赞成和反对意见后，我们得出的结论是，不经考虑地使用地块是绝对没有道理的，同时，也不能立即驳回经过深思熟虑的地块使用。在很大程度上，是否打包的决定取决于一个人对科学探究的哲学立场（例如，经验主义与实用主义）和研究的实质性目标（例如，了解一组项目的结构或检查一组构造的本质）。然而，在创建包裹之前，我们强烈建议调查人员彻底了解要包裹的物品的性质和尺寸。掌握这些知识后，可以利用各种创建地块的技术来最大限度地减少潜在的陷阱并优化 SEM 程序中构造的测量结构。描述了许多分割技术，并指出了它们的优点和缺点。
We examine the controversial practice of using parcels of items as manifest variables in structural equation modeling (SEM) procedures. After detailing arguments pro and con, we conclude that the unconsidered use of parcels is never warranted, while, at the same time, the considered use of parcels cannot be dismissed out of hand. In large part, the decision to parcel or not depends on one's philosophical stance regarding scientific inquiry (e.g., empiricist vs. pragmatist) and the substantive goal of a study (e.g., to understand the structure of a set of items or to examine the nature of a set of constructs). Prior to creating parcels, however, we recommend strongly that investigators acquire a thorough understanding of the nature and dimensionality of the items to be parceled. With this knowledge in hand, various techniques for creating parcels can be utilized to minimize potential pitfalls and to optimize the measurement structure of constructs in SEM procedures. A number of parceling techniques are described, noting their strengths and weaknesses.