Subset correspondence analysis: Visualizing relationships among a selected set of response categories from a questionnaire survey

Michael Greenacre and Rafael Pardo

Economics Working Papers from Department of Economics and Business, Universitat Pompeu Fabra

Abstract: It is shown how correspondence analysis may be applied to a subset of response categories from a questionnaire survey, for example the subset of undecided responses or the subset of responses for a particular category. The idea is to maintain the original relative frequencies of the categories and not re-express them relative to totals within the subset, as would normally be done in a regular correspondence analysis of the subset. Furthermore, the masses and chi-square metric assigned to the data subset are the same as those in the correspondence analysis of the whole data set. This variant of the method, called Subset Correspondence Analysis, is illustrated on data from the ISSP survey on Family and Changing Gender Roles.

Keywords: Categorical data; correspondence analysis; questionnaire survey (search for similar items in EconPapers)
JEL-codes: C19 C88 (search for similar items in EconPapers)
Date: 2004-11
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Citations: View citations in EconPapers (2)

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