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Chapter 13: Multinomial Logistic Regression

Chapter 13: Multinomial Logistic Regression

pp. 366-388

Authors

Dudley L. Poston, Jr, Texas A&M University, Eugenia Conde, University of North Carolina, Chapel Hill, Layton M. Field, Mount St. Mary’s University
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Extract

In Chapter 12 we discussed the modeling and fitting of a logistic regression equation with a dependent variable with three or more ordered categories. In this chapter we discuss the modelling and fitting of a logistic regression equation with a multi-categorical dependent variable, but here the dependent variable will have response categories that are not ordered, that is, they are nominal. The most frequently used method for estimating a nominal categorical dependent variable is the multinomial logistic regression model, the subject of this chapter. This model is a natural extension of logistic regression for a binary dependent variable.

Keywords

  • multi-categorical dependent variable
  • unordered response categories
  • multinomial logistic regression
  • outcome/contrast category
  • model fit
  • multinomial logit coefficient
  • odds ratio standardized on the <span class='italic'>X</span> variable

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