What is identity schema?

Identity schema is a concept in personal epistemology: Your self-model is the most consequential schema you maintain.

Example: A software engineer who holds a self-schema of 'I'm not a real engineer because I'm self-taught' filters every code review, promotion decision, and technical discussion through that lens. She dismisses positive feedback as politeness, interprets constructive criticism as confirmation, and avoids stretch assignments that might expose the 'truth.' The schema doesn't describe reality — it constructs it. Meanwhile, a colleague with identical skills but a different self-schema ('I figure things out') interprets the same feedback as useful signal and the same stretch assignments as opportunity. Same environment. Different operating system.

This concept is part of Phase 17 (Meta-Schemas) in the How to Think curriculum, which builds the epistemic infrastructure for meta-schemas.