Public SafetyHuman capitalPositive

Becoming a Man (BAM) — Cognitive Behavioral Therapy

University of Chicago Crime Lab / Youth Guidance · Chicago, IL, USA · 2015

Summary

The BAM experiment is unusual in simultaneously reducing violent crime and improving schooling outcomes through a low-cost, school-based intervention. The mechanism — cognitive behavioral therapy targeting automatic responses to perceived threats — had not previously been tested at scale in a public school setting. The 44% reduction in violent crime arrests during the program year was more than double what researchers anticipated. A four-year follow-up found sustained effects on graduation rates. The cost-per-arrest-avoided ($1,100) was a fraction of the social cost of a violent crime. BAM has been replicated in multiple cities and is among the most well-evidenced school-based crime prevention programs in the United States.

Research question

"Does in-school cognitive behavioral therapy reduce violent crime involvement and improve schooling outcomes for high-risk young men?"

Methodology

Intervention

Weekly in-school group sessions (1 hour) of cognitive behavioral therapy focused on automatic decision-making patterns; facilitators trained in Youth Guidance BAM curriculum; offered during school day as elective

Assignment

Randomized controlled trial (school-level randomization)

Sample size

2,740 students across 18 Chicago public schools

Primary outcome

Violent crime arrests; school engagement; graduation rates

Effect estimate

Violent crime arrests: −44% during program year; school engagement: +14%; graduation rates: +19% in 4-year follow-up

Decision

BAM expanded to 160+ Chicago schools; New York City, Denver, and London adopted variants; University of Chicago Crime Lab published replication with comparable results

Result

Positive

Violent crime arrests: −44% during program year; school engagement: +14%; graduation rates: +19% in 4-year follow-up

Evidence strength

Strong

Randomized trial, replicated across multiple sites or studies.

Replication status

Replicated

Institution

University of Chicago Crime Lab / Youth Guidance

Location

Chicago, IL, USA

Year

2015

Policy area

Public Safety

Mechanism

Human capital

More from these institutions

Other trials of this mechanism

Cite this entry

University of Chicago Crime Lab / Youth Guidance. (2015). Becoming a Man (BAM) — Cognitive Behavioral Therapy. The Experiment Society Registry. Retrieved from https://www.experimentsociety.org/registry/chicago-becoming-a-man (primary report: https://crimelab.uchicago.edu/projects/becoming-a-man/)