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Small sample tests for the equality of intraclass correlation coefficients under unequal family sizes.

机译:在不平等的家庭规模下,对类内相关系数的相等性进行小样本测试。

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摘要

Large sample tests have been proposed for testing the equality of two or three intraclass correlation coefficients when the family sizes are unequal. The theoretical developments of these tests can be found at Young and Bhandary (1998) and Bhandary and Alam (2000). In this research, we focus on the case when the sample size is very small. First, we consider a case with two populations. The exact null distribution of the test statistic is derived. We use a Monte Carlo simulation study and find that the performance of our new test is superior to the tests that were proposed by Young and Bhandary (1998). Work is then extended to develop a test for three intraclass correlation coefficients. We use Bonferroni's approach to approximate the critical value at a specified alpha level for testing the equality of intraclass correlation coefficients. We propose several possible critical regions based on different measures. Simulation studies are conducted to investigate which choice of these three critical regions is the most appropriate for our new test. We compare our new test and the test that was proposed by Bhandary and Alam (2000) and recommend our new test in practice when the sample sizes are small.
机译:当家庭规模不相等时,已经提出了大样本测试来测试两个或三个类内相关系数的相等性。这些测试的理论发展可以在Young和Bhandary(1998)以及Bhandary和Alam(2000)中找到。在这项研究中,我们关注样本量很小的情况。首先,我们考虑一个有两个人口的情况。得出检验统计信息的精确零分布。我们使用蒙特卡洛模拟研究,发现我们的新测试的性能优于Young和Bhandary(1998)提出的测试。然后扩展工作以开发用于三个类内相关系数的检验。我们使用Bonferroni的方法在指定的alpha级别近似临界值,以测试类内相关系数的相等性。我们根据不同的措施提出了几个可能的关键区域。进行模拟研究以调查这三个关键区域中的哪个选择最适合我们的新测试。我们将我们的新测试与Bhandary和Alam(2000)提出的测试进行比较,并在样本量较小时在实践中推荐我们的新测试。

著录项

  • 作者

    Fujiwara, Koji.;

  • 作者单位

    North Dakota State University.;

  • 授予单位 North Dakota State University.;
  • 学科 Statistics.
  • 学位 Ph.D.
  • 年度 2009
  • 页码 108 p.
  • 总页数 108
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 统计学;
  • 关键词

  • 入库时间 2022-08-17 11:38:25

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