How does JASP calculate the confidence interval for Cohen's d in Welch's t test for 2 ind vars?
How does JASP calculate the confidence interval for Cohen's d in Welch's t test for 2 independent variables i.e. unequal variances of samples? I am trying to do this in R code. I have _been able to replicate confidence interval results for _Student's t test by finding the non centrality parameter of the t distribution using Rs numerical uniroot method and Bonett's method. I can supply code and data on application. Also if you can give a reference for your formula as I have been unable to find an explanation of the method for this test. Thanks.