“…Deciding "what works" is difficult enough when studies evaluate a single treatment modality, such as boot camps or cognitive-behavioral therapy. But assessing how best to facilitate prisoner reentry is especially daunting because of the heterogeneity of interventions that fall under this category (Gunnison and Helfgott 2013;Mears and Cochran 2015). Reentry programs vary along several dimensions: existing rehabilitation programs relabeled as "reentry" versus programs created specifically to facilitate reentry; the setting of the program (in prison, in the community, in between, or across all three phrases of reentry); programs that are multimodal versus those that focus on specific criminogenic or life needs, such as deficits in behavioral and cognitive behavioral skills, mental health, substance abuse, and problems surrounding housing, employment, family bonds, and physical health; and formal programs administered by correctional agencies versus programs staffed by volunteers and run by nonprofit organizations, faith-based groups, or ex-offenders.…”