URL of experiment: Pavlovia
Description of the problem:
I’ve started to run this study a few days ago and tried to give it to a few participant to make sure it’s working fine. However, although I do know participants have finished the experiment already, when I tried to download the result from Pavlovia, there’s still no record from that participant. I’m certain that I’ve got enough credit on that study, also in the experiment page Pavlovia shows me there’s 5 aborted data, and I’ve selected save incomplete data as well, there is still only one result being saved and can be downloaded.
Thank you for anyone who can tell me what’s going on and how can I fix that!
The link to your experiment doesn’t give access I’m afraid. Could you share it on GitLab? For instance by making it temporarily public?
Just did, thank you for reminding me!
I didn’t see any obvious problems. Cases where participants report that they took part in an experiment, while the researcher did not receive any data, can be a bit difficult to diagnose. For the short term: did they happen to end the experiment by closing the window or pressing escape at the last instruction slide?
For the long term: we’re planning to write a little manual for how to diagnose issues with online experiments, so that could provide some more pointers. Here is an old document I wrote which we’ll probably use as a starting point. https://thomaspronk.com/pdf/Tech_Support_and_Bug_Report_Guidelines%20v1.3.pdf
Thank you, Thomas! I went over the experiment again and recall that when one of the participants’s doing his/her trials, a credit on Pavlovia shows reserved, but when that participant finished, nothing has been recorded, while the reserved credit has been returned for some reason instead of consumed. Also, on the experiment page, it says the last session finished on the 18th, which is supposed to be that participant,
however, the last commit to the data in gitlab is on 16th, which means the 18th participant’s data haven’t been recorded:
Would that mean anything in terms of troubleshooting?
Thank you for all the help!
That’s good to know! Maybe from the perspective of the participant (and you?) the experiment was properly completed, but not from the perspective of PsychoJS. In the forum reply below, I explain how PsychoJS sees it. Come to think of it; I think I’ll start a little list with explanations like these, so that we can collect them in a nice manual later on.
Might this reply help? Data not recording from tablet or smart phone