Debate is occurring about which result interpretation aides focused on examining the experimental effect should be used in single-subject experimental research. In this study, we examined seven nonoverlap methods and compared results using each method to judgments of two visual analysts. The data sources for the present study were 36 studies…

Some form of a short interrupted time series (ITS) is often used to evaluate state and national programs. An ITS design with a single treatment group assumes that the pretest functional form can be validly estimated and extrapolated into the postintervention period where it provides a valid counterfactual. This assumption is problematic. Ambiguous…

Interrupted time-series (ITS) are often used to assess the causal effect of a planned or even unplanned shock introduced into an on-going process. The pre-intervention slope is supposed to index the causal counterfactual, and deviations from it in mean, slope or variance are used to indicate an effect. However, a secure causal inference is only…

The core work of the National Center on Scaling Up Effective Schools consists of four stages: identifying practices of highly effective high schools, designing interventions and transfer of practices, evaluating the intervention's implementation and effects, and evaluating implementation at scale. The purpose of this report is to describe the…

This study investigated the inclusion of English language learners (ELLs) in state standards and assessments, as measured by comments made by peer reviewers in the federal evaluation of states' standards and assessments. As required by the Elementary and Secondary Education Act (ESEA), reauthorized in 2004 as No Child Left Behind (NCLB), states…

The No Child Left Behind Act is comprised of four pillars, one of which is "proven education methods." This paper attempts to provide a historical context for the development of evidence-based education by examining its foundation in medical practice. Next, the rationale for evidence of educational effectiveness based on a scientific…

The purpose of this study is to demonstrate the usefulness of the Schools and Staffing Survey (SASS), for the comparative analysis of alumni teachers. This article shows how SASS can be used as an evaluative tool by any institution that wants to appraise its alumni in comparison to those of its parallel institutions for the purposes of…

Having low literacy skills could impact everything from reading a newspaper and balancing a checkbook to wise consumer decisions and job advancement. This study estimates adult literacy measures for Cuyahoga County, Ohio and its municipalities. It is also important to have a sense of how many children are at risk for developing literacy problems…