05-25-2021, 05:55 PM
Hi Cheonkam,
Is there a particularly reason why you are running 3 identical studies at the same time? Are you trying to run 300 participants at the same time? You may crash the server if that's the case. There's a reason why capacity per session is capped at 100 - that's our estimate of how many participants we can take simultaneously within a 5-minute span.
If you do launch 3 studies, please launch them at least 1 hour apart from each other.
As for eligibility control, as long as you set up the anti-prerequisite correctly, participants should not be able to take the other 2 HITs after they have done one. However, there's a minor 1-minute delay in applying the eligibility control. So the chance of duplicate studies is slim but it's not entirely 0.
Most of these issues won't happen if you launch your studies on FindingFive directly. Eligibility control is particularly tricky with regard to mturk, especially for simultaneous sessions.
Is there a particularly reason why you are running 3 identical studies at the same time? Are you trying to run 300 participants at the same time? You may crash the server if that's the case. There's a reason why capacity per session is capped at 100 - that's our estimate of how many participants we can take simultaneously within a 5-minute span.
If you do launch 3 studies, please launch them at least 1 hour apart from each other.
As for eligibility control, as long as you set up the anti-prerequisite correctly, participants should not be able to take the other 2 HITs after they have done one. However, there's a minor 1-minute delay in applying the eligibility control. So the chance of duplicate studies is slim but it's not entirely 0.
Most of these issues won't happen if you launch your studies on FindingFive directly. Eligibility control is particularly tricky with regard to mturk, especially for simultaneous sessions.