We agree with Dr. Fiscella (1) that school readiness is an appropriate measure for educational success and health and that early childhood interventions are an important component of the portfolio of interventions needed to improve educational outcomes in the United States, which lags behind other developed nations in its commitment to early childhood education (2). Developing objective and meaningful measures of school readiness without replicating the obsession with testing that characterizes the “No Child Left Behind” mandates is a challenge (3).