Modelling shelter choices in a class of mixture models for ordinal responses

被引:63
|
作者
Iannario, Maria [1 ]
机构
[1] Univ Naples Federico II, Dept Stat Sci, I-80138 Naples, Italy
来源
STATISTICAL METHODS AND APPLICATIONS | 2012年 / 21卷 / 01期
关键词
Ordinal data; Shelter choice; cub models; ZERO-INFLATED POISSON; COUNT DATA; LIKELIHOOD RATIO; REGRESSION; SPECIFICATION; PREFERENCES; TESTS; SCORE;
D O I
10.1007/s10260-011-0176-x
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
In rating surveys, people are requested to evaluate objects, items, services, and so on, by choosing among a list of ordered categories. In some circumstances, it may happen that a subset of respondents selects a specific option just to simplify a more demanding choice. In this context, we generalize a class of ordinal data models (called cub and proven effective for fitting and interpretation), for taking the possible presence of a shelter choice into account. After the discussion of interpretative and inferential issues, the usefulness of the approach is checked against real case studies and by means of a simulation experiment. Some final remarks end the paper.
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页码:1 / 22
页数:22
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