Up To Speed With Categorical Data Analysis

Categorical data analysis remains a substantial tool in the practice of statistics, and its techniques continue to evolve with time. This paper reviews some of the basic tenets of categorical data analysis today and describes the newer techniques that have become common practice. The use of exact methods has expanded, including additional assessments of statistical hypotheses, conditional logistic regression, and Poisson regression. Bayesian methods are now available for logistic regression and Poisson regression, and graphics are a regular component of many analyses. This paper describes recent techniques and illustrates them with examples that use SAS/STAT ® software.

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