We have been using STACK for around 10 years at Manchester University. One of my colleagues told me about a problem we used to(?) have with the use if randomised variables in questions. I don't think this is the case anymore, but I wanted to confirm that it definitely isn't.
We sometimes allow students to take a practice version of a quiz many times and then afterwards, an assessment version which uses the same questions from the question bank. Unfortunately, we discovered that the randomisation
seed worked in such a way that the question in the assessment was EXACTLY the
same as the first practice attempt i.e. the same set of random numbers had been
generated by the same seed etc. At the time, there did not seem a proper
solution to this so we got round it by creating a duplicate of each question
and then applying a minor change (e.g. changing one of the randomisation
Can you confirm if this was a known issue some years back and is now no longer an issue? Recently we have re-tested this issue and can no longer reproduce the problem. but I want to be sure before I start inviting new users to use our STACK service.
Thanks and best wishes,