otree's profile picture. An open-source platform for social science experiments. chris@otree.org

oTree

@otree

An open-source platform for social science experiments. [email protected]

Introducing the oTree AI Builder, which can program entire oTree games from a chat prompt, no coding required, with high accuracy: otreehub.com/otai/projects/


More features added to oTree 6.0 beta: back button, live methods on WaitPage, DecimalField with customizable units, multiple custom_export functions, and more.


Heroku is currently having an outage (due to AWS failure). Because of this oTree Hub deployment to Heroku is not working either.


More additions to oTree 6 beta: back button, preserving unsubmitted forms, filtering fields in admin: otree.readthedocs.io/en/latest/misc…


oTree 6.0 beta: support for ChatGPT during experiments (and other web services), better wait pages, many smaller improvements: otree.readthedocs.io/en/latest/misc…


Screenshots of new features in oTree 5.12 beta: otree.readthedocs.io/en/latest/misc…


For your oTree experiments, what participant recruiting platform do you use most? (or which do you want to use?)


oTree reposted

Experimentalist: Soon, I'll give a short course on programming experiments with @otree. What would you like to learn, wish you have known earlier, or what are some aspects you find challenging? Help me out, please (Comments and RT are much appreciated.) #EconTwitter


oTree reposted

It was a pleasure to deliver this session today. It is nice to see more and more people interested in learning @otree 🧑‍💻 Thanks @MethodologyLSE for the opportunity!

Register for the final #MY560 workshop of the year with @martina_testori! This workshop aims to introduce students and researchers to oTree, a leading open-source framework to conduct experiments in the social sciences. 📅 Wednesday 14 June 📝 bit.ly/3o37Qe4

LSEMethodology's tweet image. Register for the final #MY560 workshop of the year with @martina_testori!

This workshop aims to introduce students and researchers to oTree, a leading open-source framework to conduct experiments in the social sciences.

📅 Wednesday 14 June 
📝 bit.ly/3o37Qe4


oTree reposted

Just got an invitation to a kid's friend's birthday. The RSVP form is on Qualtrics. So, who's going to be the first to program a birthday RSVP form using oTree?


oTree reposted

Register for the final #MY560 workshop of the year with @martina_testori! This workshop aims to introduce students and researchers to oTree, a leading open-source framework to conduct experiments in the social sciences. 📅 Wednesday 14 June 📝 bit.ly/3o37Qe4

LSEMethodology's tweet image. Register for the final #MY560 workshop of the year with @martina_testori!

This workshop aims to introduce students and researchers to oTree, a leading open-source framework to conduct experiments in the social sciences.

📅 Wednesday 14 June 
📝 bit.ly/3o37Qe4

oTree reposted

I second oTree! If you're comfortable or have RA support to conduct programming in Python, in my experience it's been highly customizable/powerful


Heroku free dynos are discontinued, but students can get free Heroku credits through the Student Developer Program: blog.heroku.com/github-student…. Also, Heroku has introduced Eco dynos which are very cheap ($5/month pooled across all sites)


oTree reposted

I created an oTree app based on the code I usually use to (1) screen for bots, (2) ask users to allow scripts, and (3) detect proxy/VPN usage. Test it here: screeningappdemo.herokuapp.com/demo Download the oTree app here:github.com/victorvanpelt/… #experiments #mturk #otree #prolific #research


In oTree 5.10, if a model field doesn't specify 'min', it will be assumed to be 0. This allows oTree to display the friendlier numeric keypad on mobile. Also prevents unintended negative inputs, e.g. a user 'hacking' the game by entering a negative contribution amount.


I've been holding oTree office hours over Zoom with labs that have an oTree Hub group subscription. Looking at people's code and advising them on their projects. Would be glad to do it at more universities :) otreehub.com/subscription/


Ask your lab/group admin to get you a group subscription to oTree Studio: otreehub.com/subscription/. It makes building experiments much easier and faster. Also can get support from me.


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