There are no personality types: there are traits
Five traits, not five boxes
What you learn hereDescribe personality as five continuous traits, not types; say what each one is about; and tell a stable trait apart from a passing state.
This page summarises the lesson and cites its sources. The full lesson —animated, narrated, with its practice— opens with the Lifetime Pass, along with the rest of the course and everything to come.
See the Pass — CA$39 →SourcesGoldberg, 1993 · Donnellan et al., 2006 (Mini-IPIP) · Roberts et al., 2006 · Updated 2026-08-06