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Contents11 Association Between Introduction .. Measure of Association .. Chapter Summary .. chi square Based Measures .. Phi .. Contingency coefficient .. Cramer s V .. Summary of chi square Based Measures .. Reduction in Error Measures .. 786766 Chapter 11 Association IntroductionIn previous chapters, much of the discussion concerned a single variable,describing a distribution, calculating summary statistics, obtaining intervalestimates for parameters and testing hypotheses concerning these parame-ters. Statistics that describe or make inferences about a single distributionare referred to asunivariate statistics. While univariate statistics formthe basis for many other types of statistics, none of the issues concerningrelationships among variables can be answered by examining only a singlevariable.
Measures of Association 770 the value of the chi square statistic provides a test whether or not there is a statistical relationship between the variables in the cross classiflcation table.
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