The 20 Item Prosopagnosia Index (PI20)

Survey copyright

Teesside University is responsible for running this survey. This organisation either owns the copyright for this survey, or is using this survey under agreement with the copyright holder. All rights reserved.

Shah, P., Gaule, A., Sowden, S., Bird, G., & Cook, R. (2015). The 20-item prosopagnosia index (PI20): A self-report instrument for identifying developmental prosopagnosia. Royal Society Open Science, 6: 140343.

Software copyright

Copyright for the online surveys software is held by Jisc.