Identifying sources of variation has been used extensively in educational research as a tool to identify potential drives of variances in student achievement. However, prior research predominantly relied on findings from national- or international-level data, and thus their conclusions remain very broad-based. This study contributes new insight by…

Background/Context: This article addresses the classroom contextual effects of absences on student achievement. Previous research on peer effects has predominantly focused on peer socioeconomic status or classroom academic ability and its effects on classmates. However, the field has been limited by not discerning the individual-level academic…

In evaluating the deleterious effects of missing in-school time, research has almost exclusively focused on absences, and almost no attention has been paid to tardiness. Hence, this study contributes a new dimension to the field by examining the effects of student tardiness on academic achievement. Employing an empirical model on a large-scale,…

The influence that students with special educational needs may exert on the schooling outcomes of their siblings without special educational needs has been given minimal attention in published research. Hence, the authors bring forth a unique contribution by evaluating the within-family effects of being a child without special educational needs in…

At the request of the State of Pennsylvania, the School District of Philadelphia, in the summer of 2002, asked three for-profit firms to assume responsibility for 30 of its lowest-performing schools and it asked four nonprofit managers to assume the management of 16 other low-performing schools. A difference-in-differences analysis is used to…

This study contributes a novel perspective on grade retention by empirically examining how classroom composition relates to the standardized-testing performance of grade-retained students in their post-retained years. This evaluation employed a sample of entire cohorts of urban elementary school children in the Philadelphia School District over 6…

General outcome measures (GOMs) provide educators with a means to evaluate student progress toward curricular objectives. Curriculum-based measurement (CBM) is one type of GOM that has a long history in the research literature with strong empirical support. With the increased emphasis on instruction linked to state standards and statewide…