ERIC Number: EJ727363
Record Type: Journal
Publication Date: 2004
Reference Count: N/A
Mokken Scale Analysis Using Hierarchical Clustering Procedures
van Abswoude, Alexandra A. H.; Vermunt, Jeroen K.; Hemker, Bas T.; van der Ark, L. Andries
Applied Psychological Measurement, v28 n5 p332-354 2004
Mokken scale analysis (MSA) can be used to assess and build unidimensional scales from an item pool that is sensitive to multiple dimensions. These scales satisfy a set of scaling conditions, one of which follows from the model of monotone homogeneity. An important drawback of the MSA program is that the sequential item selection and scale construction procedure may not find the dominant underlying dimensionality of the responses to a set of items. The authors investigated alternative hierarchical item selection procedures and compared the performance of four hierarchical methods and the sequential clustering method in the MSA context. The results showed that hierarchical clustering methods can improve the search process of the dominant dimensionality of a data matrix. In particular, the complete linkage and scale linkage methods were promising in finding the dimensionality of the item response data from a set of items.
Descriptors: Measures (Individuals), Item Analysis, Item Response Theory, Item Banks, Scaling, Measurement Techniques, Multivariate Analysis, Test Construction
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
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