There is a burgeoning body of evidence on the average impacts of educational programs. Yet, for many local decision makers, because impacts can vary across sites, the question of whether a certain program will work in their particular district or school remains. This article addresses the question of the generalizability of large-scale average…

This study examines the associations between class size, teacher characteristics, and children's academic achievement in mathematics, reading, and science using a recent, large-scale, longitudinal dataset. Individual fixed effects models, which control for observed and unobserved time-invariant student variables, were employed to conduct analysis…

The effectiveness of class size reduction on student performance has been of great research interest and policy debate worldwide. Nevertheless, the evidence has been largely inconclusive partially due to potential bias arising from non-random placement of students and teachers in classrooms of different sizes. This study applied instrumental…

High-quality Tier 1 instruction is frequently conceptualized as the "foundation" for other tiers of intervention within multitiered systems of support (MTSS) models. However, the vast majority of Tier 2 intervention studies do not account for Tier 1 variables when examining intervention effectiveness. The purpose of this study was to…

High-quality Tier 1 instruction is frequently conceptualized as the "foundation" for other tiers of intervention within multi-tiered systems of support (MTSS) models (Gersten et al., 2009). However, the vast majority of Tier 2 intervention studies do not account for Tier 1 variables when examining intervention effectiveness (Hill et al.,…

There are 22 traditional public and 14 public charter schools in Central Harlem's Community School District 5 ("CSD 5"), educating approximately 9,200 students in grades 3 to 8, of whom 94% are Black or Hispanic and 84% economically disadvantaged. School results on 2019 statewide tests ranged from 99.8 % down to only 8.3% at grade level…

Increasing class size is one of the key variables that policy makers can use to control spending on education. But the consensus among many education researchers is that smaller classes are effective in improving student achievement. This view has led to a policy of class size reductions in a number of US states, the UK, and the Netherlands. This…

This research design was a mixed methods embedded study with a quasi-experimental component in the quantitative portion identifying the teachers and students as independent variables and the Professional Learning Communities (PLCs) that are aligned with teacher effectiveness and student achievement as the dependent variables. The confounding…

This study examines whether a relationship exists between school size and student achievement utilizing the Pennsylvania System of School Assessment (PSSA) exams for students in grades 3-8 in both Reading and Math. More specifically, the study investigates the relationship of school size and achievement with historically underperforming subgroups,…

Policies about reducing class size have been implemented in the US and Europe in the past decades. Only a few studies have discussed the effects of class size at different levels of student achievement, and their findings have been mixed. We employ quantile regression analysis, coupled with instrumental variables, to examine the causal effects of…

The Individuals with Disabilities Education Act stresses the importance of educating students with disabilities (SWDs) in the least restrictive environment, often with peers who do not have disabilities. Prior research has examined the extent to which SWDs are included in general education classrooms, but not the characteristics of the peers with…

This study investigated the relationship between socio-economic status, school-level variables and mathematics achievement of sixth graders in Kenya and Zimbabwe. The study is based on secondary data collected by the Southern and Eastern Africa Consortium for Monitoring Educational Quality (SACMEQ III). SACMEQ employed cluster-sampling procedures…

Debates in education policy draw on different theories about how to raise children's achievement. The "school competition" theory holds that achievement rises when families can choose among competing schools. The school resource theory holds that achievement rises with school spending and resources that spending can buy. The "family…

Purpose: The purpose of this paper was to investigate the influences of calendar year, year level, gender and language background other than English (LBOTE) on student achievement in literacy and numeracy relative to class size. Design/methodology/approach: Data for this study were collected over five years (2008-2012) as test results from the…

Class size reduction policies have been widely implemented around the world in recent years. However, findings about the effects of class size on student achievement have been mixed. This study examines class size effects on fourth-grade mathematics achievement in 14 European countries using data from TIMSS (Trends in International Mathematics and…