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Criminal activity often involves considerable risks. It is therefore not surprising that criminals have been speculated to differ from noncriminals in risk attitude. Yet, few data exist to support this assumption. Moreover, the psychological underpinnings of differences in risk attitude are currently little understood. We presented prisoners and controls with sets of risky decision tasks and modeled their responses using cumulative prospect theory (CPT). The two groups showed several differences. Prisoners were more risk seeking than nonprisoners in lotteries involving losses, but they were less risk seeking in lotteries involving high-probability gains. Best-fitting CPT parameters indicated a reduced sensitivity to outcomes, for both gains and losses, and a stronger loss aversion among prisoners. In addition, prisoners showed a diminished sensitivity to the probability of gains. Our results contribute to a better understanding of prisoners' risk attitudes and the underlying mechanisms that distinguish prisoners from nonprisoners and may thus help improve interventions designed to prevent crime.

Prospects behind bars: Analyzing decisions under risk in a prison population