{{category R.package}}
!!!effectsize
https://cran.r-project.org/web/packages/effectsize/index.html
https://easystats.github.io/effectsize/

!!cohens_d(ベクトル, ベクトル)

{{pre
cohens_d(MDD2, MDD3)

Cohen's d |         95% CI
--------------------------
-0.30     | [-0.40, -0.19]

- Estimated using pooled SD.


interpret_cohens_d(d=-0.30, rules="cohen1988")
[1] "small"
(Rules: cohen1988)
}}