Purpose : The purpose of this study was to identify errors in statistical descriptions in articles publishedin the journal of Korean Radiological Society and to guggest guidelines for the reduction of such errors.Materials and Methods : In order to investigate statistical errors, 139 of the 514 original articles publishedbetween July 1994 were analysed. To assess the validity of statistical descriptions, five items were evaluated.The five items included descriptions of basic data, statistical tests and their results, tables, articles whichhad presented two or more statistical methods or results, and the Chi-square test. Results : The percentages ofcorrect descriptions of basic data, statistical tests and their results, tables, articles which had presented twoor more statistical methods or results, and the Chi-square test were 86.3%, 74.8%, 24.4%, 76.7% and 79.4%,respectively. In 50 of 139 articles(36.0%), statistical descriptions were correct. Conclusion : More than half ofthe articles assessed contained statistical errors; inaccuracies of this kind might raise doubts about theobjective validity of an article and the authors should there fore be careful when performing a study which needsstatistical descriptions.