Understanding the Risks of Tackling in Youth Football

Using innovative mouth guard sensor technology, Mathematica is conducting a rigorous evaluation over 27 months to measure head impacts in more than 40 youth football teams.

Playworks: Student and School Outcomes

Full-time coaches in low-income schools provide opportunities for organized play during recess and throughout the school day. Activities engage students in physical activity, foster social skills, improve ability to focus on class work, decrease behavioral problems, and improve school climate.

Evaluation of the Harlem Children's Zone Healthy Harlem Initiative

The Healthy Harlem initiative is a model for promoting healthy lifestyles in the charter schools, early childhood programs, and afterschool programs operated by the Harlem Children’s Zone® (HCZ). Mathematica's evaluation includes both an implementation/process study and an impact study.