An Introduction to Data Analysis

자료 분석의 기초

  • Pak, Son-Il (School of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University) ;
  • Lee, Young-Won (College of Veterinary Medicine, Chungnam National University)
  • 박선일 (강원대학교 수의학부대학 및 동물의학종합연구소) ;
  • 이영원 (충남대학교 수의과대학)
  • Published : 2009.06.30

Abstract

With the growing importance of evidence-based medicine, clinical or biomedical research relies critically on the validity and reliability of data, and the subsequent statistical inferences for medical decision-making may lead to valid conclusion. Despite widespread use of analytical techniques in papers published in the Journal of Veterinary Clinics statistical errors particularly in design of experiments, research methodology or data analysis methods are commonly encountered. These flaws often leading to misinterpretation of the data, thereby, subjected to inappropriate conclusions. This article is the first in a series of nontechnical introduction designed not to systemic review of medical statistics but intended to provide the journal readers with an understanding of common statistical concepts, including data scale, selection of appropriate statistical methods, descriptive statistics, data transformation, confidence interval, the principles of hypothesis testing, sampling distribution, and interpretation of results.

Keywords

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