This paper introduces a simple, quotient effect size, termed (for 'quotient'), suitable for reporting on the effectiveness of educational interventions. The quotient effect size for a pre-test-post-test design is defined as the gain score (i.e. post-test minus pre-test) for the intervention group, divided by the gain score for the control group.…

Due to repeated observations of an outcome behavior in N-of-1 or single-case design (SCD) intervention studies, the occurrence of missing scores is inevitable in such studies. Approximately 21% of SCD articles published in five reputable journals between 2015 and 2019 exhibited evidence of missing scores. Missing rates varied by designs, with the…

Natural scientists are relaxed about the multiple forms experiment takes in their various fields. Yet in education we have for many years constrained our notion of experiment. This methodological circumscription has been self-imposed on the grounds that experiment of a particular, well-defined form offers the clearest evidence of a link between…

With the aim of developing an assessment more appropriate for low-income countries, in 2013 the Organisation for Economic Co-operation and Development initiated the Programme for International Student Assessment for Development (PISA-D). Designed as a one-off assessment project resulting in scores comparable to PISA, nine countries joined the…

This article reports on a reconceptualization of the Precalculus course experience at Florida International University. We discuss the details of the redesign process--unified within a faculty learning community (FLC) model--along with a broader change in the course sequence leading up to Calculus. We provide data, including the comparison between…

Because standardized tests in science are not given to PreK-3 students in Ohio, this report examined the longitudinal effects of learning from a teacher who had participated in the NURTURES professional development program. Specifically, it looked at the effects on students' mathematics and reading learning in grades 2-5 and science learning in…

Using a rich dataset that merges student-level school records with birth records, and a student fixed effect design, we explore how the massive scale-up of a Florida private school choice program affected public school students' outcomes. Expansion of the program produced modestly larger benefits for students attending public schools that had a…

The Early Interactive Reading Software Program encourages literacy growth and achievement in students in grades K-3. The program addresses early reading through the use of computer-based literacy software which provides individualized instruction designed to supplement students' classroom learning. During the 2019-2020 school year, these software…

This paper uses an RCT to estimate the impact of PROBEMS, a scholarship program in Mexico aimed at improving graduation rates and test scores among upper secondary school students from poor backgrounds. We find that, on average, the program has no impact either on graduation rates or on Math and Spanish test scores. We identify two possible…

This paper describes and evaluates a web-based coaching program designed to support teachers in implementing Common Core-aligned math instruction. Web-based coaching programs can be operated at relatively lower costs, are scalable, and make it more feasible to pair teachers with coaches who have expertise in their content area and grade level.…

This annual publication is designed to be a one-stop shop for all the existing research on private school choice in the United States. This year's edition is updated with the research published since the last edition. Since the first modern-day voucher program launched in Milwaukee in 1990, researchers have studied private school choice programs.…

Laboratory capacity is an issue that has plagued education for more than a century. New buildings, late night classes, and virtual laboratories have offered transitory relief at great expense. Missouri University of Science and Technology is employing blended strategies to increase capacity and student success. Blended strategies expand learning…

Policymakers may be interested in the extent to which Federal Work-Study programs (FWS) increase students' access to productive employment, and how they impact students' academic and career success. This brief summarizes findings from a recent study using national data and a propensity score matching approach to examine the overall effects of FWS…

District costs for teachers' health insurance are, on average, higher then employer costs for private-sector professionals. How much of this is attributable to collective bargaining? This article examines the question using data from the National Compensation Survey (NCS) of the Bureau of Labor Statistics (BLS) and the state of Wisconsin. In…

This report summarizes the longitudinal performance of Austin Independent School District bilingual and English as a second language programs' students on state academic reading and math assessments by examining scores across 5 school years, from 2013-2014 through 2017-2018. Students' performance is summarized by program.