Re: Q statistic - homogeneity of studies
« Reply #5 on: 17 March, 2008, 08:41:36 AM »
Thanks for working on this issue!! I copied the heterogeneity section from the example meta-analysis for the version that I have (which I think is the most recent). The output does appear to be "zero" for all of the tests.
Mean Cohen's d Weighted By Variance: 0
Q Statistic Based On Cohen's d Using Inverse Variance as Weighting: 0, DF: 0
Q Statistic Significance Level (Using Chi Squared Test): Two Tailed p = 0, One Tailed p = 0
I Squared (Higgins & Thompson, 2002) For Cohen's d Calculations Using Inverse Variance as Weighting: 0% of Total Study Variation Due to Heterogeneity.