“Hit Me, Maybe, One More Time”: Brief measures of impulsivity and sensation seeking and their prediction of blackjack bets and sexual promiscuity

We sought to construct an efficient, reliable, and valid self-report measure of impulsivity and sensation-seeking. We used item response theory to identify the 8 best items (ImpSS-8) from the 19-item Impulsivity and Sensation-Seeking Scale (Zuckerman, Kuhlman, Joireman, Teta, & Kraft, 1993; Study 1). The ImpSS-8 interacted with a manipulated ego threat to predict blackjack bets: in a weak situation (no ego threat), individual differences were strong (a positive ImpSS-8–bets relationship); in a strong situation (ego threat), individual differences were weak (no relationship; Study 2). The ImpSS-8’s 4-item impulsivity and sensation-seeking subscales related differentially to the Balloon Analogue Risk Task (Study 2) as well as trait measures of openness and conscientiousness, hostility and physical aggression, and sexually promiscuous attitudes and timing (Study 3).

► We develop brief, reliable, and valid measures of impulsivity and sensation seeking.
► We use item response theory and confirmatory factor analyses to test scale items.
► In three studies, we show a 19-item measure can be reduced to two 4-item measures.
► Ego threat reduces the relationship between impulsivity/sensation-seeking and betting.
► Impulsivity and sensation seeking relate differentially to aggression and promiscuous sex.