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Hi there,
I have two experiments that I am running next week. Participants will complete both, unless they have already done one of the two in a former session, in which case they get only one. I want to use group number to accomplish this - those with group number 1 get both, group number 2 only 1. Looking at the Batch element, this should be doable. However, when trying to work from the example, I constantly get an error (group is not a valid setting). Its hard for me to tell from the example what should be put in for group assignment (i tried numbers etc). Does anyone know?
here is what I am trying in my batch script.
<batch > /subjects = (1 of 2) /groupassignment = group / file="SES8.exp" / file="SES7.exp" </batch>
<batch> /subjects = (2 of 2) /groupassignment = group / file="SES8.exp" </batch>
Hope you can help, Iris.
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