Single-item versus multiple-item measurement scales: An empirical comparison
Single-item versus multiple-item measurement scales: An empirical comparison
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DOI：
10.1177/0013164498058006003
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发表时间：
1998-12-01
影响因子：
2.7
通讯作者：
Cummings, LL
中科院分区：
文献类型：
--
作者：
Gardner, DG;Cummings, LL
常见方法差异通常是心理测量的问题，需要受访者自我报告态度、信念、看法等。本研究通过比较心理结构的多项目、李克特型测量与相同结构的单项、非李克特型测量来检验这个问题。使用验证性因素分析，根据方法方差和结构有效性的标准对替代形式进行比较。从经验上看，这两种方法似乎都不比另一种更好。讨论了可能适合完善的单项测量的不寻常情况。
Common methods variance often is a problem with psychological measures that require respondent self-reports of attitudes, beliefs, perceptions, and the like. The present study examined this problem by comparing multiple-item, Likert-type measures of psychological constructs to single-hem, non-likert-type measures of the same constructs. Using confirmatory factor analysis, the alternative forms were compared on criteria of methods variance and construct validity. Neither method appeared to be empirically better than the other. Unusual situations in which well-developed single-item measures might be appropriate are discussed.