Trait vs state
Also known as: State-trait distinction
The difference between how you usually are and how you feel right now.
What it means
The trait–state distinction separates enduring, cross-situational dispositions (traits) from temporary, situation-specific conditions (states). A trait is your characteristic average level of a tendency — say, your typical anxiousness — that is relatively stable over time and contexts; a state is the level you happen to be experiencing at a given moment, which fluctuates with circumstance. The same construct, like anxiety or motivation, can be measured both ways, and instruments such as the State–Trait Anxiety Inventory do exactly that. Confusing the two is a common error: a one-off measurement captures state-laden noise around the trait, and interventions may shift states without changing traits. The distinction matters for measurement reliability, for interpreting fluctuating behavior, and for knowing whether you are observing a stable person or a passing mood.
Examples
A calm person (low trait anxiety) can still be highly anxious (high state anxiety) the night before surgery.
An engagement survey run the week after a reorganisation measures a state, not a trait — the low scores may say more about that fortnight than about the team.
A habitually motivated runner can feel utterly unmotivated on a wet Tuesday; judging her from that one morning mistakes a passing state for who she is.
First described in Cattell & Scheier; Spielberger (1960s–1970s).