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KMID : 0358920130400030223
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Journal of the Korean Academy of Pedodontics
2013 Volume.40 No. 3 p.223 ~ p.232
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Review on Problems with Null Hypothesis Significance Testing in Dental Research and Its Alternatives
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Lee Kwang-Hee
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Abstract
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There are many problems in evaluating study results by p value in null hypothesis testing for dental research. It is a logical fallacy to conclude that the null hypothesis is true when the it is not rejected. There are much serious misunderstanding about p value, and researchers should be cautious about interpreting p value in writing papers. As alternatives to complement or replace the null hypothesis significance testing, effect size, confidence interval, and Bayesian statistics are introduced.
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KEYWORD
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Null hypothesis, Significance testing, p value, Effect size, Confidence interval, Bayesian statistics
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