THE PROBLEM OF EQUIVALENT MODELS IN APPLICATIONS OF COVARIANCE STRUCTURE-ANALYSIS
THE PROBLEM OF EQUIVALENT MODELS IN APPLICATIONS OF COVARIANCE STRUCTURE-ANALYSIS
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DOI：
10.1037/0033-2909.114.1.185
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发表时间：
1993-07-01
影响因子：
22.4
通讯作者：
FABRIGAR, LR
中科院分区：
文献类型：
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作者：
MACCALLUM, RC;WEGENER, DT;FABRIGAR, LR
对于任何给定的协方差结构模型，通常会存在替代模型，这些模型在数据拟合优度方面与原始模型无法区分。这种等价模型的存在在实证研究中几乎普遍被忽视。对 53 份已发表申请的研究表明，等效模型通常存在，而且数量通常很大。对三个应用程序的详细研究表明，等效模型通常可以提供具有实质性意义的数据替代解释。讨论了等效模型现象的重要性以及在实践中管理和应对该问题的建议。
For any given covariance structure model, there will often be alternative models that are indistinguishable from the original model in terms of goodness of fit to data. The existence of such equivalent models is almost universally ignored in empirical studies. A study of 53 published applications showed that equivalent models exist routinely, often in large numbers. Detailed study of three applications showed that equivalent models may often offer substantively meaningful alternative explanations of data. The importance of the equivalent model phenomenon and recommendations for managing and confronting the problem in practice are discussed.