A ROBUST GOODNESS-OF-FIT TEST STATISTIC WITH APPLICATION TO ORDINAL REGRESSION-MODELS

被引:7
|
作者
LIPSITZ, SR
BUONCRISTIANI, JF
机构
[1] HARVARD UNIV,SCH MED,DANA FARBER CANC INST,BOSTON,MA 02115
[2] WHEATON COLL,NORTON,MA 02766
关键词
D O I
10.1002/sim.4780130205
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
We propose a goodness-of-fit test statistic for linear regression with heterogeneous variance, which is asymptotically chi-square if the given model is correct. The test statistic is computed as a quadratic form of observed minus predicted responses. We apply the method to a linear regression for an ordinal categorical response, the wheezing status of a child (no wheeze, wheeze with cold, wheeze apart from cold) as a function of maternal smoking and city of residence.
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页码:143 / 152
页数:10
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