This document highlights key information needed to work with the Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K) data and points the

Guideline 12: If the Results of Previous Studies Are Inconsistent or Widely Varying, Cite Them Separately

Since its beginning in 1965 as a part of the War on Poverty, Head Start's goal has been to boost the school readiness of low-income children. Based on a 'whole