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Abstract Details
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Activity Number:
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577
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Type:
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Contributed
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Date/Time:
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Wednesday, August 1, 2012 : 2:00 PM to 3:50 PM
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Sponsor:
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International Chinese Statistical Association
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| Abstract - #306277 |
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Title:
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Homogeneity Test for Correlated Data in Ophthalmologic Studies
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Author(s):
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Changxing Ma*+ and Guogen Shan
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Companies:
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SUNY at Buffalo and Brain Trauma Foundation
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Address:
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706 Kimball Tower, Buffalo, NY, 14214,
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Keywords:
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Homogeneity test ;
intraclass correlation ;
score test ;
asymptotic test
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Abstract:
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In ophthalmologic studies, a person may have contributed two eyes (two arms, etc.) worth of information, the values from the two eyes being highly correlated. An asymptotic method was proposed by Tang et al. (2008) for testing equality of proportions between two groups. In this article, we investigate three test procedures for general g > 2 groups. Our simulation results show the Score testing procedure usually produces satisfactory type-I error control and having higher power. An example from an otolaryngological study is used to illustrate our proposed methods.
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