The purpose of this report is to describe basic descriptive statistics on barriers to parent-school involvement data that are available using the Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011). The brief begins by examining the level of parents' involvement in activities in their children's schools and the specific types of activities in which they participated when their children were enrolled in school. Then, it describes the types of barriers to participation that parents face. Finally, the brief focuses on children whose parents have low involvement, showing how the barriers to involvement differ across child, family, and school characteristics. Similar to previous National Center for Education Statistics (NCES) reports, this Statistics in Brief compares parent-school involvement by the following child, family, and school characteristics: students' race/ethnicity, household poverty status, parents' highest level of education, family type, parent labor force status, students' primary home language, school type, and school minority enrollment.