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…

Objective: U.S. and Canadian data demonstrate decreasing inpatient days, increasing nonurgent emergency department (ED) visits, and short supply of child psychiatrists. Our study aims to determine whether aftercare reduces ED visits and/or readmission in adolescents with first psychiatric hospitalization. Method: We conducted a population-based…

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…

The purpose of this user's manual is to document the procedures used to collect and process postsecondary school transcripts for members of the National Longitudinal Study of the High School Class of 1972 who had attended any postsecondary institutions since leaving high school. In addition, this manual will provide researchers with the technical…

This manual has been produced to familiarize data users with the procedures followed for data collection and processing of the first follow-up component of the National Education Longitudinal Study of 1988 (NELS:88). A corollary objective is to provide the necessary documentation for use of the data file. Use of the data set does not require the…

Suggestions and guidelines for using the Bureau of the Census' Current Population Survey (CPS) files are provided. CPS is based on the civilian component of a national probability sample of households and is conducted by the Bureau of the Census. The survey gathers employment data on a continuing basis, as well as supplemental information on such…

Survey instruments used in the collection of data for the High School and Beyond base year (1980) through the third follow-up surveys (1986) are provided as Volume II of a user's manual for the senior cohort data file. The complete user's manual is designed to provide the extensive documentation necessary for using the cohort data files. Copies of…