|
KMID : 0608520080140020087
|
|
Korean Journal of Oriental Medicine
2008 Volume.14 No. 2 p.87 ~ p.91
|
|
|
An Assessment of Statistical Validity of Articles Published in 『Korean Journal of Oriental Medicine』 - from 1995 to 2007
|
|
Kang Kyung-won
Yoo Jong-Hyang
Kang Byeong-Gab
Ko Mi-Mi
Choi Sun-Mi
|
|
|
Abstract
|
|
|
|
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.
|
|
|
KEYWORD
|
|
|
statistical method, p-value, t-test, multiple comparison
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|
|