This manual provides guidance and documentation for users of the longitudinal kindergarten-fourth grade (K-4) public-use data file of the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011), which includes the first release of the public version of the third-grade data. This manual mainly provides information specific…

The road to becoming a reader begins the day a child is born and continues through the end of third grade. At that point, a child must read with ease and understanding to take advantage of the learning opportunities in fourth grade and beyond--in school and in life. Learning to read and write starts at home, long before children go to school. Very…