Search EdWorkingPapers

Search EdWorkingPapers by author, title, or keywords.

Luke Miratrix

Kathryn E. Gonzalez, Olivia Healy, Luke Miratrix, Terri J. Sabol.

Despite considerable evidence on the links between average classroom quality and children’s learning, the importance of variation in quality is not well understood. We examined whether three measures of variation in observed classroom quality over the school year – overall variation in quality, teacher-specific trends in quality, and instability in quality – were associated with children’s language, literacy, and regulatory outcomes. We also examined whether variation in quality was associated with teachers’ participation in coaching. Overall variation and instability in emotional support and classroom organization over the year were negatively associated with children’s regulatory and literacy outcomes. Participation in coaching was linked to increased variation only in instructional support. We discuss implications for policies focused on improving classroom quality.

More →


Christina Weiland, Rebecca Unterman, Susan Dynarski, Rachel Abenavoli, Howard Bloom, Breno Braga, Anne-Marie Faria, Erica Greenberg, Brian Jacob, Jane Arnold Lincove, Karen Manship, Meghan McCormick, Luke Miratrix, Tomás E. Monarrez, Pamela Morris-Perez, Anna Shapiro, Jon Valant, Lindsay Weixler.

Lottery-based identification strategies offer potential for generating the next generation of evidence on U.S. early education programs.  Our collaborative network of five research teams applying this design in early education and methods experts has identified six challenges that need to be carefully considered in this next context: 1) available baseline covariates may not be very rich; 2) limited data on the counterfactual; 3) limited and inconsistent outcome data; 4) weakened internal validity due to attrition; 5) constrained external validity due to who competes for oversubscribed programs; and 6) difficulties answering site-level questions with child-level randomization.  We offer potential solutions to these six challenges and concrete recommendations for the design of future lottery-based early education studies.

More →

Appendix140.99 KB