Hello,
I'm struggling to know how to obtain Z-score from Bias Report. As far as I know, z-scores greater than +2 or smaller than -2 are considered to display significant bias. But, I can't find them in the Bias report other than Bias size and t-values. I'd really appreciate if you could tell me how to get Z-scores using Facets.
Thanks!

Suns74, Z-scores are unit-normal deviates reporting the significance of a hypothesis test. They are calculated with the assumption that there are a very large number of observations. Since this is often not true, Winsteps and Facets compute t-statistics. These are more accurate than Z-scores for more small samples, and are the same as Z-scores for very large samples.

If you are not familiar with t-statistics, please see http://en.wikipedia.org/wiki/T-statistic