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Journal of Chinese Integrative Medicine ›› 2011, Vol. 9 ›› Issue (9): 937-940.doi: 10.3736/jcim20110903

• Methodology • Previous Articles     Next Articles

The repetition principle in scientific research

Liang-ping Hu(), Xiao-lei Bao, Qi Wang   

  1. Consulting Center of Biomedical Statistics, Academy of Military Medical Sciences, Beijing 100850, China
  • Received:2011-07-19 Accepted:2011-07-22 Online:2011-09-20 Published:2011-09-15
  • Contact: Hu Liang-ping E-mail:lphu812@sina.com

The repetition principle is important in scientific research, because the observational indexes are random variables, which require a certain amount of samples to reveal their changing regularity. The repetition principle stabilizes the mean and the standard variation, so that statistics of the sample can well represent the parameters of the population. Thus, the statistical inference will be reliable. This article discussed the repetition principle from the perspective of common sense and specialty with examples.

Key words: statistics, medical, research design, reproducibility of results, sample size, pathogenesis (TCM)

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