The impulsivity subscale of the Eysenck Personality Inventory has been associated with stop signal reaction time scores,62 as have parent/teacher reports of externalizing behaviors in children.63 A weak correlation has been observed between go/no-go performance and Barratt Impulsiveness Scale scores, with no such correlation observed with stop signal inhibition.64 Studies comparing the performance of individuals in reversal-learning tasks with self-reported levels of impulsivity have indicated that difficulty in reversing discrimination problems is associated with heightened levels of self-reported levels of impulsivity.65 Together, these data suggest that the laboratory tasks measure, at least partially, the same forms of impulsivity measured with personality scales.
