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Replication data for: Item Similarity in Scale Analysis

Harvard Dataverse (Africa Rice Center, Bioversity International, CCAFS, CIAT, IFPRI, IRRI and WorldFish)

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Title Replication data for: Item Similarity in Scale Analysis
 
Identifier https://doi.org/10.7910/DVN/DMOMCF
 
Creator Marco R. Steenbergen
 
Publisher Harvard Dataverse
 
Description A statistic—the similarity coefficient—is developed for assessing the property that a set of scale items measures one and only one construct. This statistic is rooted in an explicit measurement model and is flexible enough to be used in exploratory scale analyses, even in small samples. Methods for analyzing similarity coefficients are described and illustrated in analyses of Stimson’s (1991) policy mood data and Markus’ (1990) popular individualism items. The Appendix discusses the statistical properties of similarity coefficients.
 
Date 2000