Synthetic users are research instruments, not research participants
Presented by Dominira Saul at CapCHI in September 2026, this deck reviews the latest evidence on AI-generated synthetic users, shares two DFFRNT experiments comparing them with real participants, and offers practical frameworks for deciding when they help and when they fall short.
A practical guide to where synthetic users help in UX research (generating hypotheses, stress-testing protocols, and extending existing research) and where they fall short. It includes a validity ladder and six rules for using them responsibly.