Discusses the problem of determining an adequate sample size for an information retrieval experiment comparing two systems on separate samples of requests. The application of statistical methods to information retrieval experiments is discussed, the Mann-Whitney U Test is used for determining minimum sample sizes, and variables and distributions…

In this article, the author documents the learning disadvantage of rural primary school students in sub-Saharan Africa and attempts to identify the factors underlying such disadvantages. Analyzing data from 14 school systems participating in the second study of the Southern and Western Africa Consortium for Monitoring Educational Quality (SACMEQ…

Survey of Ohio State University faculty members and administrators examines their attitudes and perceptions regarding need for, and potential use of, a computerized database to increase efficiency of graduate school administration, and to collect and generate data for academic departments' use in improving programs. Proposed database design is…