Micceri (1989) examined the distributional characteristics of 440 large-sample achievement and psychometric measures. All the distributions were found to be nonnormal at alpha = 0.01. Micceri indicated three factors that might contribute to a non-Gaussian error distribution in the population. The first factor is subpopulations within a target…

The Annie E. Casey Foundation's "2016 KIDS COUNT Data Book" finds today's youth--Generation Z--are healthier and completing high school on time despite mounting economic inequality and increasingly unaffordable college tuition. Aided by smart policies and investments in prevention, a record number of teens are making positive choices.…

The present study was commissioned by the Massachusetts Department of Elementary and Secondary Education (ESE) to provide a profile of Massachusetts English Language Learners (ELLs) and policy recommendations for improving their outcomes. ESE was concerned about previous study findings that most of these learners exited ELL instructional programs…

In light of the emergence of statistical analysis techniques based on data mining in education sciences, and the potential they offer to detect non-trivial information in large databases, this paper presents a procedure used to detect factors linked to academic achievement in large-scale assessments. The study is based on a non-experimental,…

The focus of this study was on increasing the knowledge base on students with disabilities at the secondary level. Data were gathered on 559 classified secondary students with disabilities served in four educational options: cotaught classes, resource rooms, alternate day support programs, and no direct supports. Results indicate that there are…