Issue retrieving data

Online experiments
1

Hi everyone,

I’m currently facing an issue retrieving my data and would really appreciate some help.

I ran an experiment (ASDIAT2) with 159 participants and paid the required credits for all of them. However, when I try to download the results, the ZIP file does not contain the full dataset. Instead, I only get 7 CSV files (most of which are empty) and 4 log.gz files.

As a result, I’m unable to access the data from the 159 participants who completed the experiment.

Has anyone encountered a similar issue or knows how I can properly retrieve all the results?

Thank you very much in advance for your help!

2

Did you switch the experiment to inactive after collecting data?

Have you tried downloading from the experiment page as well as by syncing?

Have the credits been consumed or just reserved?

3

I did not switch the experiment to inactive after collecting data, it is still active
I tried downloading from the experiment page, via the “download results” button

The 159 credits have been consumed :confused:

4

Does the downloaded file also have a db folder? I’m wondering whether there’s any database data. Please could you PM me the experiment URL and/or add me (Wake) as a developer? What was the range of consumption dates of the credits (see your credits tab)?

5

The downloaded file does not contain a “db” folder. I’m encountering the same problem with my pre-test experiment, but since I have a “db” file for that one, which is a CSV containing the results for all participants, I should be able to calculate the results. Unfortunately, I don’t have a file of this type for the post-test.
I’ll send you the experiment URL in a private message.
The credit usage period was from March 23, 2036 to March 27, 2026.

8

Dear @Liloumaz ,

The issue here is that your experiment is asking for “Numéro étudiant” but the filename of the result file requires “Participant” instead.

let expInfo = {
‘Numéro étudiant’: ‘’,
};

psychoJS.experiment.dataFileName = (("." + "/") + `data/${expInfo["Participant"]}_${expName}`);

Furthermore, dataFileName normally also includes a date but yours does not. This is also the case for the PsychoPy version of your experiment.

As a consequence, all of your results were written to: undefined_TAI.csv instead of a different file for each participant.

May I ask whether you edited the filename yourself? Perhaps in builder?

The good news is that each of your participant’s results were pushed to GitLab. So even though there is only one file for all results, the commit history should have all or most of your participant results. Do you know how to go through that commit history?

Incidentally, I noticed that you did not really pilot your study (2 aborted sessions). We strongly recommend people to go ahead with a full pilot session or two, to make sure that all is well.

Alain

9

Hello Alain

The ASDIAT2 experiment is one I duplicated, and I’ve used it before. That’s actually why I didn’t complete the pilot tests. Now that you’ve pointed it out, I see where the error lies… Thank you for that. The ASDIAT and ASDIAT2 experiments seem to have the same problem, but for the one named ASDIAT, I have at least one “db” folder with a file containing the history of all participants.

When I download the results via the “Download results” button on the experiment page, I do indeed get a CSV and log file named undefined_TAI.csv, but it only contains data for a single participant (probably the last one to have participated in the experiment). I don’t know how to view the commit history; could you explain how to do that?

Thank you again for your help.

10

I’ve added a tip which should help you. You need to view code to get to Gitlab.

11

Did you manage to retrieve your data? If not, then I’ll try to make a more detailed explanation of how to retrieve files from earlier commits on Gitlab.