In most societies, a small number of people commit the most serious violence. Short-term studies have shown that cognitive behavioral therapy (CBT) can reduce such antisocial behaviors. These behavior changes may be temporary, however, especially from therapy on its own. This is unsettled,...

Several small, short-term, or non-experimental studies show that cognitive behavioral-informed trainings reduce antisocial behaviors for 1–2 years. But there is no large-scale, long-term research on persistence. We follow 999 high-risk men in Liberia 10 years after randomization into: 8 weeks...