Longitudinal studies can produce biased estimates of learning if children miss tests. In an application to summer learning, we illustrate how missing test scores can create an illusion of large summer learning gaps when true gaps are close to zero. We demonstrate two methods that reduce bias by exploiting the correlations between missing and…

The goal of "The 123s" is to present the increasingly large body of private school choice research in a clear and easy-to-read format and cite the relevant studies so that anyone who is interested in the individual results can easily find them and read in more detail. This report is divided into 11 sections. First it summarizes the…

Among students in the 2024 ACT-tested graduating class, over 374,000 took the PreACT 8/9® or PreACT test before taking the ACT. This issue brief compares the ACT scores and college enrollment rates for students who took a test from the PreACT Suite of Assessments versus those who did not. The brief also examines average PreACT-to-ACT gain scores…

The Program for the International Assessment of Adult Competencies (PIAAC) is a multicycle survey of adult skills and competencies sponsored by the Organization for Economic Cooperation and Development (OECD). The survey examines a range of basic skills in the information age and assesses these adult skills consistently across participating…

Ready for Kindergarten! Survey (R4K!S) is a readiness assessment of children entering kindergarten about students' knowledge and skills within the first six to ten weeks of school. There are many interpretations of what constitutes "readiness." Vermont's concept of children's readiness is multidimensional; it includes social and…

Positive Behavioral Interventions and Supports (PBIS) is an evidence-based approach to addressing behavior issues in schools. A significant amount of research has been done to identify the critical features of PBIS. More generally, implementation science points to a specific sequence to ensure that PBIS is implemented with fidelity. This fall…

The goal of "The 123s" is to present the increasingly large body of private school choice research in a clear and easy-to-read format and cite the relevant studies so that anyone who is interested in the individual results can easily find them and read in more detail. This report is divided into 11 sections. The first section summarizes…

Northwest Evaluation Association™ (NWEA™) is committed to providing partners with useful tools to help make inferences from Measures of Academic Progress® (MAP®) interim assessment scores. One important tool is the concordance table between MAP and state summative assessments. Concordance tables have been used for decades to relate scores on…

During the past decade, the NAEP Validity Studies (NVS) Panel has been monitoring, studying, and commenting on potential issues with the validity of the National Assessment of Educational Progress (NAEP) arising from changes that have been brought about by the adoption of rigorous state college and career readiness standards, such as the Common…

This memorandum provides information pertinent to the participation and performance of Advanced Placement (AP) and International Baccalaureate (IB) examinations for 2023 graduates in Montgomery County Public Schools (MCPS). In 2023, 59.3% of MCPS graduates took one or more AP exams; 17.3 percentage points more than graduates in Maryland and 24.6…

Positive Behavioral Interventions and Supports (PBIS) is an evidence-based approach to addressing behavior issues in schools. A significant amount of research has been done to identify the critical features of PBIS. More generally, implementation science points to a specific sequence to ensure that PBIS is implemented with fidelity. This spring…

Ready for Kindergarten! Survey (R4K!S) is a readiness assessment of children entering kindergarten about students' knowledge and skills within the first six to ten weeks of school. There are many interpretations of what constitutes "readiness." Vermont's concept of children's readiness is multidimensional; it includes social and…

This memorandum provides information pertinent to the participation and performance of Advanced Placement (AP) and International Baccalaureate (IB) examinations for 2022 graduates in Montgomery County Public Schools (MCPS). In 2022, 63.2% of MCPS graduates took one or more AP exams--21.9 percentage points more than public school graduates in…

Concordance tables have been used for decades to relate scores on different tests measuring similar but distinct constructs. These tables, typically derived from statistical linking procedures, provide a direct link between scores on different tests and serve various purposes. Aside from describing how a score on one test relates to performance on…

This memorandum provides information pertinent to the participation and performance of Advanced Placement (AP) and International Baccalaureate (IB) examinations for 2021 graduates in Montgomery County Public Schools (MCPS). In 2021, 66.6 percent of MCPS graduates took one or more AP exams, a rate that was 23.0 and 31.7 percentage points higher…