Literature DB >> 26935977

Understanding type I and type II errors, statistical power and sample size.

Anthony K Akobeng1,2.   

Abstract

UNLABELLED: The results of a clinical trial may be subject to random error because of the variability in the measured data, which arises purely by chance. There are two types of random error - type I error and type II error. In this study, type I and type II errors are explained, and the important concepts of statistical power and sample size estimation are discussed.
CONCLUSION: The most important way of minimising random errors is to ensure adequate sample size; that is, a sufficient large number of patients should be recruited for the study. ©2016 Foundation Acta Paediatrica. Published by John Wiley & Sons Ltd.

Entities:  

Keywords:  Power; Sample size; Type I error; Type II error

Mesh：

Year:  2016        PMID： 26935977     DOI： 10.1111/apa.13384

Source DB:  PubMed          Journal:  Acta Paediatr        ISSN： 0803-5253            Impact factor:   2.299


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