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Sociology 709 Martin Lecture 5: February 26, 2009

How to decide whether your model needs more (or fewer) coefficients:. 1.) Calculate predicted and actual values of p for given values of x variables. Make graphs or tables as necessary.2.) Do a test for model fit based on the chi-squared family of tests.Example from today's homework: health

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Sociology 709 Martin Lecture 5: February 26, 2009

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    1. Sociology 709 (Martin) Lecture 5: February 26, 2009 Tests for model fit using … predict test fit lrtest fitstat Conducting your own likelihood ratio tests for model fit.

    24. Readings on Model Testing and Goodness of Fit Long Chapter 4 Long and Freese sections 3.2 – 3.4 and 4.3 – 4.5. Long and Freese discuss an add-on command called fitstat that does BIC and other tests logit yvar xvar fitstat

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