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
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.