Error when when when terminating the experiment

[Andrey_Chetverikov]

Hi! One of the participants said that they encountered an error with lines

when terminating the experiment,
when flushing participants logs for experiment: andche/vwm_distr_repl_prolific,
when uploading participants log for experiment

and could not complete the study. I do not have a screenshot but I do see that for this participant a data file exists but the log was not saved.

PsychoPy version : 2024.2.4
URL of experiment: morphcuetion_online_EC [PsychoPy]

[wakecarter]

What I can see is that your expInfo dialogue box doesn’t have a participant field.

Wakefield's Daily Tips

Skipping dialogue boxes online At the start of every PsychoJS experiment you get a dialogue box asking for your participant number, etc. This shouldn’t be hidden and I would recommend that you don’t change the default key “participant” since it gets used in the data file name. On the other hand you might want your participant to launch the study straight away, especially if you have already assigned a value for participant, etc. using daisy chaining or a custom participation link. If you want …

[Andrey_Chetverikov]

Thanks! If it is the really the issue, looks like a bug to me. Also it seems to work for other participants. And since they are coming from Prolific, I don’t really want any input from them here. But I brought back the participant field, let’s see if it helps.

[wakecarter]

If you don’t want any input then add ?participant=Prolific (or &participant=Prolific) to the end of the URL.

Wakefield's Daily Tips

Daisy Chaining Daisy chaining means going from one web application to another in a single participant session. It normally requires passing the values of one or more variables from one app. to the next so that the data can be matched. There are two aspects to consider. The first is sending values TO Pavlovia. I highly recommend that you send a value for participant (without changing the spelling or capitalisation) since this value will start the data file and log file names. A column for sessi…

[Andrey_Chetverikov]

Thanks a lot! Let’s see if this helps to avoid the errors.