Describes relatively new statistical method, hierarchical linear modeling (HLM), for estimating linear equations that explain outcomes for members of groups as a function of characteristics of groups and characteristics of members. Illustrates theory, practice, and interpretation of HLM in school effects studies. Discusses other education…

This background paper reviews copyright, patent, and trade secret protections as these issues are related to computer software. Topics discussed include current issues regarding legal protection for computer software including the necessity for defining intellectual property, determining what should or should not be protected, commerical piracy,…

Enumerates principal management objectives of database management systems (data independence, quality, security, multiuser access, central control) and criteria for comparison (response time, size, flexibility, other features). Conventional database management systems, relational databases, and database machines used for backend processing are…

Reviews the current state of printing software and printing hardware compatibility and capacity. Discusses the changing relationship between author and publisher resulting from the advent of desktop publishing. (LMO)

This annual review article examines the automated library system marketplace from four perspectives: turnkey circulation systems, library-developed software which may be purchased by other libraries, the microcomputer segment of market, and production of COM catalogs. Addresses of 86 turnkey vendors, software vendors, library-developed systems,…

This paper argues that Merrill's instructional transaction theory provides a framework that can decrease learners' problems in using computer simulations by specifying transaction shells rather than frames in designing interactive courseware. The three types of data used in a transaction, i.e., an instructional algorithm, are identified as a…

Reviews attributes of laser discs and "traditional" objections to use of audiovisual materials. Use of authoring systems as means of tailoring laser disc programs and updating aging materials is described. Flexibility and power of the Video Nova Authoring System is explained and illustrated and the SONY SMC-70 microcomputer is evaluated.…

Recent developments in computer and multimedia technologies bring about the need to reconsider the education of today's teachers and future teachers and to update the technology-related content of literacy education coursework. "Application" software receives the most attention from researchers and theorists in literacy education. Use of…

This report is a collection of 11 recent papers by the Human-Machine Interaction Group at the University of California, San Diego. The following papers are included: (1) "Stages and Levels in Human-Machine Interaction," Donald A. Norman; (2) "The Nature of Expertise in UNIX," Stephen W. Draper; (3) "Users in the Real…

Presents results from the 1992 Drug Use Forecasting (DUF) program that measures illicit drug use among persons arrested for criminal behavior. Adult use of specific drugs, male juvenile drug use, and the role of the DUF are explored. (GLR)