This research proposes a new statistic for testing latent variable distribution fit for unidimensional item response theory (IRT) models. If the typical assumption of normality is violated, then item parameter estimates will be biased, and dependent quantities such as IRT score estimates will be adversely affected. The proposed statistic compares…

Attention deficit hyperactivity disorder (AD/HD) is one of the most frequently occurring disorders in school children, and information and communication technology (ICT) in education is one of the tools that is lately considered as helpful for the education of some children with disorders. This research is a case study--using mixed-methods--of the…

Inclusive STEM high schools (ISHSs) (where STEM is science, technology, engineering, and mathematics) admit students on the basis of interest rather than competitive examination. This study examines the central assumption behind these schools--that they provide students from subgroups underrepresented in STEM with experiences that equip them…

The purpose of this study was to determine the effect of an 11th-grade and 12th-grade zoo-based academic high school experiential science program compared to a same school-district school-based academic high school experiential science program on students' pretest and posttest science, math, and reading achievement, and student perceptions of…

The National Assessment of Educational Progress (NAEP) in science was updated in 2009 to keep the content current with key developments in science, curriculum standards, assessments, and research. Because of the recent changes to the assessment, the results from 2009 cannot be compared to those from previous assessment years; however, they provide…

"The Condition of Education 2017" is a congressionally mandated annual report summarizing the latest data on education in the United States. This report is designed to help policymakers and the public monitor educational progress. This year's report includes 50 indicators on topics ranging from prekindergarten through postsecondary…

In an effort to overcome deficiencies in teaching molecular biology at school, a workshop in an out-of-school laboratory including only authentic experiments was developed. Evaluation of 337 A-level 12th graders followed a quasi-experimental design, with one hands-on group, two non-experimental control groups (at school/in the laboratory), and one…

This report compares information gathered from the Massachusetts Educational Assessment Program (MEAP) test administrations of 1986 and 1988 with data from the National Assessment of Educational Progress (NAEP) tests given those same years (mathematics and science in 1986 and reading and United States history in 1988). The focus is on how…

Our main goal in this study was to explore whether the use of models in molecular genetics instruction in high school can contribute to students' understanding of concepts and processes in genetics. Three comparable groups of 11th and 12th graders participated: The control group (116 students) was taught in the traditional lecture format, while…

A project examined the mathematics and science performance of vocational students in Ohio. Part I of the study achieved the first objective--to report the science and mathematics content contained within the Ohio Vocational Achievement Tests for the 38 program areas. Each of the 38 tests was presented and found to have sound psychometric…