How to prevent 'start-time' and 'last seen' from being logged at each study result

amhofmann

Dear JATOS- community,

i am looking for a way to prevent Jatos from logging timestamps (study-begin or last-seen) at each study result. Duration is fine.

Has anyone faced a similar problem? Looking for help!

Thanks

kri

Hi,

Interesting. Do you want this out of privacy reasons?

JATOS right now stores the start and end date (a Unix timestamp) for each component run by a participant. The same it does for the whole study. From start and end date it calculates the duration.

Additionally it has a 'heartbeat' sent regularly (every 2 min by default) back to the the JATOS server while the study is running. Whenever a 'heartbeat' arrives at the JATOS server the 'last seen' date (again a Unix timestamp) is stored in the database.

That said, there is no configuration parameter yet to turn this off. It probably could be implemented without too much effort. Anyway without start and end date you wouldn't have the duration too.

Best,

Kristian

amhofmann

Dear Kristian,

thanks for your fast reply.

This problem is related to privacy-concerns , so yes!

Would be interested to see it coming in the next update!

Thanks,

Amin

kri

Okay, I will do.