To be able to calculate z-scores from any other scores, you need to know:
1) The mean of your score data. This is the mean calculated from the sample where the scores you want to transform come from.
2) The standard deviation of your data.If you don't know how to do that, click on our Standard Deviation Calculator and we will do it for you.
Finally, introduce the score that you want to transform into the 'Score to transform' slot.