The aim was to examine the effects of group training techniques in job-search training on later reemployment and mental health. The participants were 278 unemployed workers in Finland in 71 job-search training groups. Five group-level dimensions of training were identified. The results of hierarchical linear modeling demonstrated that preparation for setbacks at the group level significantly predicted decreased psychological distress and decreased symptoms of depression at the half-year follow-up. Trainer skills at the group level significantly predicted decreased symptoms of depression and reemployment to stable jobs. Interaction analyses showed that preparation for setbacks at the group level predicted fewer symptoms of psychological distress and depression, and shared perceptions of skilled trainers at the group level predicted fewer symptoms of depression among those who had been at risk for depression.