Titlebook: Classification, Data Analysis, and Data Highways; Proceedings of the 2 Ingo Balderjahn,Rudolf Mathar,Martin Schader Conference proceedings

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A Note on the Off-Block-Diagonal Approximation of the Burt Matrix as Applied in Joint CorrespondenceJoint correspondence analysis (JCA) is a commonly applied variation of multiple correspondence analysis (MCA) where the block-diagonal part of the Burt matrix is not considered in the fit. Examples shown here underline that this approach may in some cases lead to ambiguous results which may violate desirable properties of the representation.

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Multilevel Modeling: When and WhyMultilevel models have become popular for the analysis of a variety of problems. This chapter gives a summary of the reasons for using multilevel models, and provides examples why these reasons are indeed valid. Next, recent (simulation) research is reviewed on the robustness and power of the usual estimation procedures with varying sample sizes.

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978-3-540-63909-1Springer-Verlag Berlin · Heidelberg 1998

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