Pooling studies that measure one outcome on different scales: Cohen's d or Hedges' g?
The question. In a meta-analysis that combines studies measuring the same outcome with different scales, is it better to use Cohen's d or Hedges' g?
Hedges' g is better, and much better with small samples. The difference is subtle, and you do not need to explain it. Just choose Hedges' g for your plots.
這些回答是經驗與建議，不是規定。你的稿件以目標期刊的規定為準，你的研究以所屬機構的倫理審查為準。