Abstract
Vazire’s self–other knowledge asymmetry (SOKA) model shows that neither the self nor others have full access to a person: the self knows internal, hard-to-observe traits better, while others often judge highly observable and evaluative traits more accurately — giving an empirical structure to the idea that we have genuine blind spots.
Vazire, S. (2010). Journal of Personality and Social Psychology, 98(2), 281–300. DOI
Key findings
- Asymmetry of access — Self and others each hold privileged information; accuracy depends on the trait, not on a global “who knows best.”
- Observability matters — Others judge highly observable behaviours (e.g. talkativeness) well; the self holds the edge on internal states (e.g. anxiety).
- Evaluativeness matters — For ego-relevant, evaluative traits (e.g. intelligence, attractiveness) self-views are distorted, and others can be more accurate — the structural source of the blind spot.
When to open this
Open alongside Johari window when you need the evidence that blind spots are real and trait-specific — and why feedback from others, not introspection alone, is required to shrink them.