I am currently working on a project with a few students. It's an app that can test the big 5 personality test. The problem is, I am having trouble finding one that is under an open license and that we could use. We are currently using a free non-commercial use for research purposes, but we are starting to explore the possibility of using it commercially one day.

Please list even ones that we might have to pay for.


The IPIP scales are in the public domain: https://ipip.ori.org/ They are intended to have no restrictions on use.


Because the IPIP has been placed in the public domain, permission has already been automatically granted for any person to use IPIP items, scales, and inventories for any purpose, commercial or non-commercial.. It is not necessary to contact the IPIP site author (Lew Goldberg) or the IPIP Consultant (John A. Johnson) for permission to use IPIP materials. Requests for permission to use IPIP materials will be answered by sending the requester a link to this page.


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