We are 2 psychology students writing a systematic review. We need to convert the effect sizes from the different studies to Cohen's d (or another standardized effect size).
Can anyone help converting Hazard Rate Ratio (HHR) and Relative Risk (RR) to standardized effect size (eg Cohen's d)? Or how to convert HHR and RR to Odds Ratio, which we know how to convert to Cohen's d?
Hi Katrine,
Have a look at the below resource it might help you. It provided the way to convert the log odds ratio to Cohen’s d.
https://www.meta-analysis.com/downloads/Meta-analysis%20Converting%20among%20effect%20sizes.pdf
KR
Ambrish
Thank you for your answer. I have read that chapter before, and it is unforfunately not what I am looking for. I need to convert Hazard Rate Ratio and Relative Risk, and not Odds Ratio. Sorry if the question was not clear.
Katrine Nørgaard
Check the answers of "Julio Isaac Vega Cauich" and "Jeffrey C Valentine" at the attached link:
https://www.researchgate.net/post/Hello_Is_there_a_calculation_to_convert_risk_ratio_into_cohens_D
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