Hedge's G (May 13, 2005) Category: Systematic overviews
Someone asked me today about Hedge's G. I had never heard of it before, but if you do a web search, you will find
which defines it as a variation on Cohen's D that corrects for biases due to small sample sizes. The formula for Cohen's D is well known:
and you adjust this value to get Hedge's G with the formula:
This webpage was written by Steve Simon and was last modified on 07/08/2008.