This paper argues that efficacy of early intervention must be assessed in relation to both program and extra-program variables. A framework outlining five classes of independent variables and two classes of outcomes to be considered in efficacy research is presented, and regression and path analytic techniques are suggested as tools for addressing…

For paired rankings data, a statistical test is proposed to detect whether subjects' posttreatment rankings have moved systematically toward an unknown ranking or set of rankings. Using paired-rankings from 38 ninth graders in a writing and literary criticism course, graphical methods for representing the data are presented. (SLD)

Describes research conducted with employees of the NCR Corporation that examined relationships between learning style preference, as measured by the Kolb Learning Style Inventory, and the effectiveness and acceptance of interactive video instruction to determine how best to individualize instruction. (13 references) (LRW)

Based on interview and survey data from 220 upper- and middle-level managers within a Fortune 500 manufacturing firm, this case study describes how differences in organizational values influence the frequency with which decision makers use oral, written, and electronic sources of information for environmental scanning. (91 references) (LRW)

Discusses results of 2 examinations taken by 12th-grade students (n=13,522 for calculus; n=18,031 for statistics) in New Zealand. Males outscored females, significantly in statistics, and private school students outscored state school students. Some differences moderated when mathematics coursework was factored in. (Contains 32 references.)…

Item response theory (IRT) is used to develop a form of adjusted cumulative grade point average (GPA) for use in predicting college academic performance appropriately for males and females. For 1,564 students at Stanford University (California), the IRT-based GPA was more predictable from preadmission measures than the cumulative GPA. (SLD)

Described are examples of classroom exercises that use interactive graphics software for personal computers to enhance the teaching of statistical concepts by allowing students to generate multiple examples, make conjectures, and verify their findings about the concept. The transfer of this interactive tool to other subject areas is suggested.…

Statistical analysis of racially polarized voting prepared for the Garza v County of Los Angeles (California) (1990) voting rights case is reviewed to demonstrate that ecological regression is a flexible, robust technique that illuminates the reality of ethnic voting, and superior to the neighborhood model supported by the defendants. (SLD)

Discusses the use of the computer software MINITAB in teaching statistics to explore concepts, simulate games of chance, transform the normal variable into a z-score, and stimulate small and large group discussions. (MDH)

Discusses the surprising result that the expected number of marbles of one color drawn from a set of marbles of two colors after two draws without replacement is the same as the expected number of that color marble after two draws with replacement. Presents mathematical models to help explain this phenomenon. (MDH)

Examines the need for and uses of statistical data about school library media centers; describes data currently collected by the states; discusses national data collection efforts, including an increasing emphasis on output measures; recommends further actions that should be taken; and suggests future possibilities. (six references) (LRW)

Reports on a survey of university libraries that gathered data on the effects of replacing an existing automated system with a new one, i.e., NOTIS. General library automation and management statistics are reported, changes in staffing patterns and personnel are described, changes in organizational structure are discussed, and training needs are…

Eleven graphs present statistics on the number of adult, secondary, and college vocational teachers; demographics of high school vocational and nonvocational teachers; beginning teachers' race, job satisfaction, stress levels, income, and age; and subjects taught by high school, junior high, and two-year college vocational faculty. (SK)

Nine articles discuss the effect of economic and social upheaval on employment and wages in Poland, Hungary, Czechoslovakia, Bulgaria, the USSR, Estonia, Latvia, and Lithuania. (SK)

The effects of time spent on reading at school and at home on 195 intermediate grade students' reading achievement was assessed. A stepwise multiple regression analysis, in which prior standardized reading comprehension scores served as a covariate, revealed that time spent on reading contributed significantly to reading achievement. (TJH)