Elucidating the heterogeneous etiologies of autism will require investment in comprehensive longitudinal data acquisition from large community based cohorts. With this in mind, we have established a hospital-university-based (HUB) database of autism which incorporates prospective and retrospective data from a large and ethnically diverse…

High School graduation rates are key indicators of accountability for high schools and school districts in Oregon. Beginning with the 2008-09 school year, the Oregon Department of Education (ODE) implemented the cohort method of calculating graduation rates. The cohort method identifies the year the student entered high school for the first time…

The purpose of this article is to inform researchers about and encourage the use of longitudinal designs to further understanding of human resource development and organizational theory. This article presents information about a variety of longitudinal research designs, related statistical procedures, and an overview of general data collecting…

High School graduation rates are key indicators of accountability for high schools and school districts in Oregon. Beginning with the 2008-09 school year, the Oregon Department of Education (ODE) implemented the cohort method of calculating graduation rates. The cohort method identifies the year the student entered high school for the first time…

High School graduation rates are key indicators of accountability for high schools and school districts in Oregon. Beginning with the 2008-09 school year, the Oregon Department of Education (ODE) implemented the cohort method of calculating graduation rates. The cohort method identifies the year the student entered high school for the first time…

High School graduation rates are key indicators of accountability for high schools and school districts in Oregon. Beginning with the 2008-09 school year, the Oregon Department of Education (ODE) implemented the cohort method of calculating graduation rates. The cohort method identifies the year the student entered high school for the first time…

For nearly a decade, states have had flexibility in collecting and reporting graduation rate data for state and federal accountability purposes. But in 2008, the U.S. Department of Education issued new guidelines that require all states to report a new rate--the four-year adjusted cohort graduation rate--beginning in the 2011-2012 school year.…

This chapter describes the development of a state-level student tracking system that enables the state and institutions to follow various cohort types of students across institutional boundaries. The system was developed by the Policy Research and Data Warehousing section of the State Council of Higher Education for Virginia (SCHEV). SCHEV is the…

Communities That Care (CTC) is a prevention system designed to reduce adolescent substance use and delinquency through the selection of effective preventive interventions tailored to a community's specific profile of risk and protection. A community-randomized trial of CTC, the Community Youth Development Study, is currently being conducted in 24…

The Center for the Advancement of Engineering Education (CAEE) began in January 2003 with a grant from the National Science Foundation (ESI-0227558). Two NSF Directorates, Engineering and Education and Human Resources, oversee the Center's work. The Academic Pathways Study (APS) is part of the Scholarship on Learning Engineering element of the…

Offers a formula to refine enrollment projections at the school district level. The formula builds on the traditional cohort survival technique and is based on the assumption that what has happened in the past will continue to happen in the future. Instructions and sample projections are provided. (Author/WD)

The Early Childhood Longitudinal Study, Birth Cohort 2000 (ECLS-B) is a study that will assess children's health status and their growth and development in domains that are critical for later school readiness and academic achievement. This paper is one of several that have been prepared in support of ECLS-B design efforts. It is anticipated that…

Compares the results of two survey designs administered to visitors of three South African nature reserves to ascertain changes in conservation awareness. Explains the method, data collection, questionnaire design, statistical tests, pretests, pilot studies, results, and conclusions of the study. Finds that no statistical differences between…

This fourth annual report presents data for 1991 on high school dropout and retention rates, along with time series data for the period from 1972 to 1991. The report also examines high school completion and graduation rates and includes a discussion of new data collection efforts that have direct bearing on issues of high school dropouts and…

The Transfer Assembly is a research effort of the Los Angeles-based Center for the Study of Community Colleges. The Assembly defines transfer students as "all students entering a two-year college in a given year who have no prior college experience, who complete at least 12 credit units at the college, and who subsequently enroll at a senior…