The Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011) is a longitudinal study following a nationally representative sample of students from their kindergarten year to the spring of 2016, when most of the students are expected to be in fifth grade. This public-use data file includes information collected during the fall and spring of the 2010-11 school year, when all of the students were in kindergarten; the fall and spring of the 2011-12 school year, when most of the students were in first grade; the fall and spring of the 2012-13 school year, when most of the students were in second grade; the spring of 2014, when most of the students were in third grade; and the spring of 2015, when most of the students were in fourth grade. The file includes information collected from the students, their parents/guardians, their teachers, and their school administrators in each year of the study. It also includes information collected in the spring of 2011 from their kindergarten-year before- and after-school care providers.
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