Mathematica is continuously monitoring this fluid situation, and we are proactively working to minimize any potential impacts on our clients, partners, staff, and the important work that we do together. Learn more.
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). Healthy Harlem is being rolled out over a three-year period, with three different cohorts of sites beginning implementation in fall 2012, fall 2013, and fall 2014.
The evaluation includes both an implementation/process study and an impact study. The implementation study uses a combination of administrative records, staff interviews, focus groups, on-site observations, and a menu analysis to examine site-level implementation. The impact study assesses impacts on students’ knowledge, attitudes, and behaviors related to nutrition and physical activity as well as impacts on weight status (body mass index [BMI]) and fitness levels.
The impact study includes two separate substudies. The first substudy is evaluating the impact of the main initiative, which is provided to all children, using a quasi-experimental pre-test/post-test design in which child outcomes are compared before and after implementation of Healthy Harlem. The second substudy is assessing the impact of a more intensive component (called Get Fit), which is offered to children who are overweight or obese, based on a random assignment difference-in-difference design. The study also includes a comprehensive trends analysis, which will examine BMI and fitness levels in the HCZ population over a five-year period (2012-2017).
Mary Kay Fox