Eysenck Impulsiveness Scale

The Eysenck Impulsiveness Scale (EIS) is a 54-item yes/no questionnaire designed to measure impulsiveness.

Scoring
Three subscales are computed from this measure: Impulsiveness, Venturesomeness, and Empathy. Impulsiveness is defined as "behaving without thinking and without realizing the risk involved in the behavior". Venturesomeness is conceptualized as "being conscious of the risk of the behavior but acting anyway" The questionnaire was constructed through factor analysis to contain items that most highly loaded on impulsiveness and venturesomeness. The EIS is a widely used and well-validated measure.