Randomization tests and the unequal-N/unequal-variance problem
نویسندگان
چکیده
منابع مشابه
Randomization tests -1- Randomization tests in language typology
Two of the major assumptions that statistical tests make (random sampling, distribution of the data) are not tenable for most typological data. We suggest to use randomization tests, which avoid these assumptions. Randomization is applicable to frequency data, rank data, scalar measurements and ratings, so most typological data can be analyzed with the same tools. We provided a free computer pr...
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In terms of type I error rate, Log rank test and Wald test give similar results. We can see that when the randomization ratio is 1:1 for an event size of 600, no inflation of types I error rate is observed. However when the randomization ratio is 1:2 for an event size of 600, the type I error rate is inflated to about 0.027. The inflation becomes smaller when the sample size increases. However ...
متن کاملRandomization tests in language typology
Two of the major assumptions that common statistical tests make about random sampling and distribution of the data are not tenable for most typological data. We suggest to use randomization tests, which avoid these assumptions. Randomization is applicable to frequency data, rank data, scalar measurements, and ratings, so most typological data can be analyzed with the same tools. We provided a f...
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In order to simplify notation, it is helpful to define vectors of random variables that represent a randomly selected PSU such that for each selected PSU, the vector has a common dimension. With this in mind, we define the maximum number of SSUs in any of the PSUs as ( ) max : 1,..., s M M s N = = . We represent a response vector of random variables in a random permutation of PSUs and SSUs as t...
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Algorithms for relational learning and proposi-tional learning face different statistical challenges. In contrast to propositional learners, rela-tional learners often make statistical inferences about data that exhibit linkage and autocorrela-tion. Recent work has shown that these characteristics of relational data can bias inferences made by relational learners. In this paper, we develop a no...
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ژورنال
عنوان ژورنال: Behavior Research Methods
سال: 2009
ISSN: 1554-351X,1554-3528
DOI: 10.3758/brm.41.3.664