http://www.uccs.edu/lbecker/effect-size.html www.uccs.edu/lbecker/effect-size.html the [weighted] Hedge's g statistics http://www.uccs.edu/lbecker/effect-size.html http://www.uccs.edu/lbecker/effect-size.html#III Effect size http://www.uccs.edu/lbecker/effect-size.html http://www.uccs.edu/lbecker/effect-size.html the [weighted] Hedge's g statistics http://www.uccs.edu/lbecker/effect-size.html Effect Size