J Korean Neuropsychiatr Assoc.  2004 Mar;43(2):141-147.

Use and Misuse of Biostatistical Analysis

• Kim DK
• Han M
• Han HR

Abstract

OBJECTIVES
This study summarizes statistical methods which have been used in the 153 original articles of the Journal of Korean Neuropsychiatric Association published in 2002 and 2003.
METHODS
It deals with the appropriate statistical methods and some common errors for researchers.
RESULTS
Among the original articles, 41 statistical uses contain errors. Many cases of errors are found in the chi2-test and the t-test. This study detects uses of statistical errors and suggests right statistical methods.
CONCLUSION
In order to improve the validity of original articles published in the Journal of Korean Neuropsychiatric Association, a more clearly stated statistical uses and closer editorial attention to statistical methods are needed.

Keyword

Biostatistical methods; Biostatistical errors