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강경원(Kang Kyungwon),김노수(kim Nosoo),유종향(Yoo jonghyang),강병갑(Kang Byunggab),고미미(Ko Mimi),최선미(Choi Sunmi) 한국한의학연구원 2008 한국한의학연구원논문집 Vol.14 No.2
Background and Purpose: The purpose of this study was investigate statistical validities of previously reported articles that used various statistical techniques such as t r test and analysis of variance. Methods: To analyze the statistical procedures. 66 original articles using those statistical methods were selected from 『Korean Journal of Oriental Medicine(KJOM)』 published from 1995 to 2007. Results: Twenty-one articles(32%) did not report correct p-values, 33 articles(50%) used mean ± standard error(mean ± SE) and 11 articles(l7%) used mean ± standard deviation(mean ± SD). Fifty-two articles(95%) of 55 ones which were tested for normal distribution made an error in describing normal distribution. Seventeen articles misused t-test and 12 articles did not carry out the multiple comparison. Conclusions: The training of researchers with clinical statistics or the participation of statisticians in research design will reduce the significant errors in statistical interpretation of the results.