Hello all and I hope everyone is doing ok in the current troubled times!
In the spirit of social distancing, we recently ran an online study (called manikinliking2 for admin's reference) in which I noted some odd behavior that I haven't seen in the past. We used Prolific as a data collection platform and this time, there were around 12 participants (about 5% of the total sample) who submitted the study as completed on Prolific, stated that they had entered their Prolific ID during the experiment and accurately described details of the experimental procedure (proving that they took part in the study), yet who had no associated datasets. I've not noted this happening before, but it is possible that in previous studies, participants didn't message me to tell me.
I checked the web script logging for this experiment. Unfortunately, I'm not sure how to interpret the logging information, but the number of errors it displays seems far too low to cover all these missing participants. So the questions arise: was their data not logged and if so, why not? If their data was
logged, why is it not showing up in our data files? Could this be an issue of delay? I downloaded the data files quite soon after the experiment finished - is there lag between data being saved on the server and that data being available to download for me?
On a possibly related note, a participant was kind enough to screenshot an error message they received. This participant did not
complete the experiment as the script wouldn't start at all for them, but in case it helps diagnostics, here's the link:https://i.ibb.co/6XLc06R/Capture.jpg
Thanks and stay safe, everyone!