© by Christoph Hahn, released under the CC-BY-SA 4.0 Licence.
You are free to:
Share — copy and redistribute the material in any medium or format.
Adapt — remix, transform, and build upon the material for any purpose, even commercially.
Attribution details: Those who reproduce the work must attribute the authors name and the original source of the work. (https://github.com/chrhhn/ipip-neo120-paper-pencil)
Note that all the IPIP (International Personality Item Pool) items themselves are public domain. More details: http://ipip.ori.org/