Abstract
We propose a model that integrates the extralegal consequences from conviction and impulsivity into the traditional deterrence framework. The model was tested with 252 college students, who completed a survey concerning drinking and driving. Key findings include the following: (1) Although variation in sanction certainty and severity predicted offending, variation in celerity did not; (2) the extralegal consequences from conviction appear to be at least as great a deterrent as the legal consequences; (3) the influence of sanction severity diminished with an individual's “present‐orientation”; and (4) the certainty of punishment was far more robust a deterrent to offending than was the severity of punishment.