In this study, we use microdata from 12 Florida county-level school districts and a regression discontinuity design to examine the effects of early grade retention on the short-, medium-, and long-term outcomes of English learners. We find that retention in the third-grade substantially improves the English skills of these students, reducing the…

Interest has been growing in the role of students' attitudes, beliefs, and dispositions as key factors that can support or inhibit student success. A large body of emerging evidence, including multiple randomized controlled trials, shows that interventions that target academic mindsets, attitudes, and beliefs about the nature of ability and the…

Since 2004, the National Institute for School Leadership (NISL) has offered the Executive Development Program (EDP), a leadership program for sitting school principals that is typically delivered in two-day workshops once per month over 12 months. From its inception through 2018, 15,000 principals across 23 states have participated in the EDP.…

Previous studies about ELs have reported data on active English Learners--defined as those students who have not yet reached proficiency on a state English test--at a specific moment in time. This study, for the first time, analyzed the long-term trajectories of 18,000 CPS students who began kindergarten as ELs and followed their progress all the…

This report presents Year One (2010-11) school level achievement and attendance outcomes and case study findings from fall 2011 that focused on school leadership and instruction. Thirteen schools were included in the first year of Philadelphia's Renaissance Schools Initiative (2010-11). Of these schools: (1) Four K-8 schools were…

This study explores the effects of a Two-Way Bilingual Immersion (TWBI) program on language majority and minority students. The fundamental hypothesis was that the process of receiving instruction in two languages (English and Spanish) throughout elementary school (i.e., attendance at a TWBI school) would help the native Spanish-speaking students…

The National Institute of School Leadership's (NISL's) Executive Development Program (EDP) was established to provide professional development to school leaders to drive their schools to high performance. The program emphasizes the role of principals as strategic thinkers, instructional leaders, and creators of a just, fair, and caring culture in…

During the 2009-2010 school year, Marzano Research Laboratory (MRL) was commissioned by Promethean Ltd. to conduct a second year evaluation study of the effects of Promethean ActivClassroom on student academic achievement. This report describes the findings from the second year study along with aggregate findings from the first and second year…

This study examined the impact of NISL's [National Institute for School Leadership's] Executive Development Program for principals on student achievement in Pennsylvania schools between 2006-2009. Roughly half of the NISL-trained principals started the program during the 2007 school year and completed it in the 2008 school year, whereas the other…