Eight studies present support for state-trait anger theory. In Studies 1-3, high-anger participants reported (a) greater anger in many different provocations, in their most angering ongoing situations, and in daily life, (b) greater anger-related physiological arousal, (c) greater state anger and dysfunctional coping in response to a visualized provocation, and (d) greater use of suppression and outward negative expression of anger. Only heart rate in the visualized provocation did not support predictions. In Studies 4-5, high-anger individuals suffered more frequent and intense anger consequences. Tn Studies 6-8, trait anger had higher correlations with dimensions of anger than with other emotions, cognitions, and behaviors. Few gender differences were found across studies. Results were discussed in terms of state-trait theory, convergent and discriminant validity for the Trait Anger Scale, anger expression, gender, and the implications for counseling.