This study estimates the dose–response relationship between the time spent in an intensive, therapeutic treatment program during juvenile incarceration and violent juvenile offenders’ odds of recidivism. A propensity score matching approach is used to determine the treatment effect of a strong and weak dose of this program on recidivism. Analyses reveal that program participants who receive any dose of this program exhibit lower odds of recidivism than nonparticipants. Those who received a stronger dose of treatment are significantly less likely to recidivate during the three years following release than those who received no treatment. This effect grows in magnitude when compared with those who receive a weak dose. The efficacy of this program’s treatment model provides the evidence that, compared to a weak dose, rehabilitation of capital and violent juvenile offenders is more feasible within the venue of juvenile incarceration when treatment is provided to a high-risk population via an intensive dose.