Using an explicit model of emotion, we developed the Berkeley Expressivity Questionnaire. This measure of emotional expressivity has three facets: impulse strength, negative expressivity, and positive expressivity. After evaluating its factor structure and psychometric properties, we tested propositions derived from an analysis of display rules. As predicted, women were more expressive than men; Asian-Americans less expressive than other ethnic groups; and Democrats more expressive than Republicans. Expressivity also was related to two mood dimensions and to four of the Big Five personality dimensions. The pattern of findings for the subscales showed convergent and discriminant validity. Positive mood, Extraversion, and Agreeableness were most strongly related to the Positive Expressivity subscale. Negative mood, Neuroticism, and somatic complaints were most strongly related to the Impulse Strength and Negative Expressivity subscales.
