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55 lines
1.4 KiB
Plaintext
55 lines
1.4 KiB
Plaintext
7 months ago
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help for ^brant^ - 1.0.1 - 11/26/00
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Perform Brant test of parallel regression assumption after @ologit@
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------------------------------------------------------------
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^brant^ [^,^ ^detail^]
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^brant^ is for use after ^ologit^; see help @ologit@.
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Description
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-----------
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^brant^ performs a Brant test of the parallel regression assumption (also
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called the proportional odds assumption) after ologit. The test compares
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slope coefficients of the J-1 binary logits implied by the ordered regression
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model. Stata reports both the results of an omnibus test for the entire
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model and tests of the assumption for each of the independent variables in
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the model.
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The Brant test can only be computed if all of the independent variables in
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the ordered model are retained in all of the implied binary models. This
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is most likely not to be the case with models that have few observations in
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the extreme categories and many independent variables.
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Options
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-------
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^detail^ specifies that the coefficients for each of the estimated binary
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logits should be presented.
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Example
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-------
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. ^ologit warm yr89 male white age ed prst^
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. ^brant^
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. ^ologit warm yr89 male white age ed prst^
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. ^brant, detail^
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Also see
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--------
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Manual: ^[R] ologit^
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.-
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Authors: J. Scott Long and Jeremy Freese
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www.indiana.edu/~jslsoc/spost.htm
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spostsup@@indiana.edu
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