The Effects of Method Variance Within Measures
The Effects of Method Variance Within Measures
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测量中方法方差的影响
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
K. Tepper
中科院分区：
文献类型：
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作者：
B. Tepper;K. Tepper
摘要尽管在调查研究中，人们关注测量之间的方法方差作为一种偏差，但学者们忽视或忽略了测量内部方法方差的影响（即，来自同一量表的项目之间的协变可能归因于所采用的测量方法）。不仅没有几个常用的调查工具反映了控制方法方差的努力，但规模建设指南鼓励研究人员实施战略，提高措施内的方法方差的影响。在这篇文章中，我们认为，当方法方差膨胀的问卷项目之间的关系，传统的心理测量指标高估了真实的或构建的规模捕获的方差。使用固定的替代问卷调查措施的调查研究的影响划定。
Abstract Despite concern about method variance between measures as a bias in survey research, scholars have overlooked or ignored the effects of method variance within measures (i.e., covariation among items from the same scale that may be attributed to the method of measurement employed). Not only do few commonly used survey instruments reflect efforts to control for method variance, but guides to scale construction encourage researchers to implement strategies that enhance the effects of method variance within measures. In this article, we have argued that when method variance inflates relationships between questionnaire items, traditional psychometric indices overestimate the amount of true or construct variance that scales capture. Implications for survey research that uses fixed alternative questionnaire measures are delineated.