Psychometric properties of the Dickman Impulsivity Inventory

The Dickman Impulsivity Inventory (DII) is a self report measure that distinguishes two types of impulsivity. Dysfunctional impulsivity is the tendency to act with less forethought than most people of equal ability when this tendency is a source of difficulty. Functional impulsivity, in contrast, is the tendency to act with relatively little forethought when such a style is optimal. The current study presents an exploratory factor analysis of the Dutch DII and describes the psychometric properties of the instrument. It further clarifies the nature of functional and dysfunctional impulsivity by examining the relation between these two traits and another self-report measure of impulsivity, namely the Eysenck Impulsiveness Questionnare (I7). Finally, we also provide data concerning the relationship with demographics.