Your hub for statistical analysis, data management, and data documentation. Connect, learn, and share with your peers!
I read in IBM SPSS book that effect size is defined by the strength of relationship between two variables - one being dependent and another being independent. In that a case, can we find effect size with Mann Whitney Test? Mann Whitney Test considers variables that are independent of each other.
You can see how to compute the effect size in this video
https://www.youtube.com/watch?v=ILD5Jvmokig
The effect size part starts at 6:40 in the video.
You can also see simple ways of calculating effect size measures here
https://en.wikipedia.org/wiki/Mann%E2%80%93Whitney_U_test#Common_language_effect_size