TY - DATA T1 - Kidsteps II-Efficacy Trial of Second Step Early Learning (SSEL) Program: Promoting School Readiness through Social Emotional Skill Building in Preschool, Worcester County, Massachusetts, 2013-2017 AU - University of Massachusetts Medical School. Department of Family Medicine and Community Health AU - Upshur, Carole C. AU - University of Massachusetts Medical School AU - Wenz-Gross, Melodie PY - 2020 DO - 10.3886/ICPSR37521.v1 PB - Inter-university Consortium for Political and Social Research [distributor] ER -