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Participant Identification Code (view source)
Revision as of 13:05, 29 April 2020
, 13:05, 29 April 2020check procedure
''R.E.Searcher@socsci.ru.nl''
''R.E.Searcher@socsci.ru.nl''
If a participant later comes to you with a PPN and a PIC, you go and lookup your ES. Based on your ES and the PPN given to you by the participant, you recalculate the PIC. If this is identical to the PIC supplied by the participant, then the participant is indeed the person identified by the given PPN in your data file.
=== Example ===
=== Example ===
[[File:PIC libre office.png|frame|Calculating Participant Identification Code in LibreOffice]]
[[File:pic.png|frame|Calculating Participant Identification Code in LibreOffice]]
==== Online ====
==== Online ====
Try this [https://www.socsci.ru.nl/wilberth/computer/pic.html calculator] to make these checksums yourself.
Try this [https://www.socsci.ru.nl/wilberth/computer/pic.html calculator] to make these checksums yourself.