教師資料查詢 | 類別: 期刊論文 | 教師: 陳怡如 Chen Yi-ju (瀏覽個人網頁)

標題:Assessing Ordinal Logistic Regression Models via Nonparametric Smoothing
學年96
學期1
出版(發表)日期2008/01/01
作品名稱Assessing Ordinal Logistic Regression Models via Nonparametric Smoothing
作品名稱(其他語言)
著者Lin, K. C.; 陳怡如; Chen, Yi-ju
單位淡江大學統計學系
出版者Taylor & Francis
著錄名稱、卷期、頁數Communications in Statistics : Theory and Methods 37(6) , pp. 917-930
摘要A nonparametric local linear smoothing technique for testing goodness-of-fit of ordinal logistic regression models with continuous and categorical covariates is presented. This proposed test statistic is a generalization of Lin and Chen's statistic (2005 Lin , K. C. , Chen , Y. J. ( 2005 ). Testing the goodness-of-fit of logistic models based on local linear smoothing . Int. J. Infor. Mgmnt. Sci. 16 : 83 – 95 .
) to ordinal response data. The extension of logistic regression models for binary responses to ordinal responses is usually involved by modeling cumulative logits. The expectation and variance of the proposed test statistic are derived, and the sampling distribution of the test statistic, which approximates a scaled chi-square distribution is evaluated by simulation. The power comparison between the proposed test and methods of Pulkstenis and Robinson (2004 Pulkstenis , E. , Robinson , T. J. ( 2004 ). Goodness-of-fit tests for ordinal response regression models . Statist. Med. 23 : 999 – 1014 .
[CrossRef], [PubMed], [Web of Science ®]
) are also provided. The simulations reveal that the proposed test has greater power to detect the omitted interaction term, incorrectly functional form of continuous covariates, or misspecification of the complimentary log-log link function for various sample sizes. The proposed testing procedure is illustrated by a numerical study.
關鍵字Cumulative logit model;Deviance;Local linear smoother;Pearson chi-square
語言英文
ISSN0361-0926
期刊性質國內
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國別中華民國
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