A Visitor's Guide to Effect Sizes – Statistical Significance Versus Practical (Clinical) Importance of Research Findings

@article{Hojat2004AVG,
  title={A Visitor's Guide to Effect Sizes – Statistical Significance Versus Practical (Clinical) Importance of Research Findings},
  author={Mohammadreza Hojat and Gang Xu},
  journal={Advances in Health Sciences Education},
  year={2004},
  volume={9},
  pages={241-249}
}
  • M. Hojat, Gang Xu
  • Published 2004
  • Psychology
  • Advances in Health Sciences Education
Effect Sizes (ES) are an increasingly important index used toquantify the degree of practical significanceof study results. This paper gives anintroduction to the computation andinterpretation of effect sizes from theperspective of the consumer of the researchliterature. The key points made are:1. ES is a useful indicator of the practical(clinical) importance of research resultsthat can be operationally defined frombeing ``negligible'' to ``moderate'', to``important''.2. The ES has two… 
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