#1 by Victor
Title says it all. I guess there is no easy otree way? Do you have to let them upload the file to a third party server using some input field?
#2 by Chris_oTree
This is generally not available in oTree. You would need to use a third party server. What kind of files do you want to upload?
#3 by Victor
#4 by Chris_oTree
For images and multimedia, those should be uploaded to a separate server. Then the URL of the uploaded file can be provided to oTree in a StringField. The simplest way would be for the user to paste the URL manually into a formfield (text box).
#5 by gr0ssmann
LimeSurvey is really excellent for this. Have used it several times for this exact purpose. Unfortunately, it is also quite a bloated piece of software. What I did: Give subjects their participant.code and ask them to enter it on LimeSurvey, where they can upload their file(s). And thats's pretty much it.
#6 by Victor
Thanks both! This helps a lot.