Strictly Standardized Mean Difference, Standardized Mean Difference and Classical t-test for the Comparison of Two Groups

  title={Strictly Standardized Mean Difference, Standardized Mean Difference and Classical t-test for the Comparison of Two Groups},
  author={Xiaohua Douglas Zhang},
  journal={Statistics in Biopharmaceutical Research},
  pages={292 - 299}
Statistical significance or p-value of t-test for testing mean difference has been widely used for the comparison of two groups. However, because of many issues that the statistical significance has, it has been intensively criticized in medical and social sciences. Consequently, effect sizes such as Cohen’s d have been proposed as an alternative to statistical significance. Recently, strictly standardized mean difference (SSMD) has been proposed for the comparison of two groups with… 

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