Part 1 presents the chemistry, physics, and engineering technology associated with magnetic and optical disks. This part explores the subjects of archiving, security, validation and certification, and protection. Questions and issues are raised in each of the areas that both users and vendors should be aware. (JN)

Examines the vocabulary and chemistry of magnetic- and optical-disk storage technologies as well as their applications to the analytical laboratory. This information will allow chemists to select the proper disk systems for their laboratories and to evaluate vendors' claims. (JN)

A brief, non-technical synopsis of computerized data tape files available from the library of survey data collected over the last 20 years by the U.S. Department of Education Office of Educational Research and Improvement's Center for Education Statistics is provided in this directory. The available data files are listed in the following broad…

This document contains the codebooks and data record layouts for the 1985-86 Public-Use Data Tapes, Version 1.0. The Public-Use data tapes are created by the National Assessment of Educational Progress (NAEP) to provide outside researchers access to NAEP data. This book provides coded data collected on and from third graders and 9-year-olds via…

This document is the users' guide for Version 3.1 of the Public-Use data tapes compiled by the National Assessment of Educational Progress (NAEP), 1983-84. The Public-Use tapes are produced to allow outside researchers access to the NAEP data. The tapes accompanying this guide contain data assessing student achievement in reading and writing at…

This document is the users' guide for Version 1.0 of the Public-Use data tapes compiled by the National Assessment of Educational Progress (NAEP), 1985-86. The Public-Use tapes are produced to allow outside researchers access to the NAEP data. The tapes accompanying this guide, one for grade 3/age 9, one for grade 7/age 13, and one for grade…