The Oklahoma City bombing in April 1995 was an act of terrorism that had many potential influences on the city and state, including influences on families. We analyzed divorce data from 1985 to 2000 for all 77 counties in Oklahoma to assess the divorce response to the Oklahoma City bombing. Our prediction was that divorce rates in Oklahoma would…

The GGUM2004 computer program estimates parameters for a family of unidimensional unfolding item response theory (IRT) models. These unfolding IRT models predict higher item scores to the extent that a respondent is located close to an item on an underlying latent continuum. This prediction is often consistent with responses to traditional…

Presents the estimated market values of optical data disk products in 1987 and 1988, and describes the primary and secondary market indicators used to evaluate product standings. The discussion covers issues affecting electronic publishing and the optical disk industry. (CLB)

Exercise stress testing provides information on the aerobic capacity, heart rate, and blood pressure responses to graded exercises of a healthy adult. The reliability of exercise tests as a diagnostic procedure is discussed in relation to sensitivity and specificity and predictive accuracy. (JN)

Using empirical research methods to segment alumni markets, profile donors, prioritize prospects, and project realistic budgets becomes more important as fundraising goals expand. Projecting alumni growth and its impact on program and budget planning, profiling donors and nondonors, and ranking prospects are discussed. (MLW)

Prevention research on the related problems of child abuse, youth violence, and domestic violence has grown at an accelerating pace in recent years. In this context, a set of shared methodological issues has emerged as investigators seek to advance the interpersonal violence prevention knowledge base. This article considers some of the persistent…

For much of the twentieth century, Markov theory and Markov processes have been widely accepted as valid ways to view statistical variables and parameters. In the complex realm of online searching, where researchers are always seeking the route to the best search strategies and the most powerful query terms and sequences, Markov process analysis…

A method of assessment using six one-hour tests, with provision to repeat four of them, is described. Performance in the course, high school background, and the first test's results are used to determine entry criteria for the course. (MSE)

Contains a report of the application of Markov chain analysis to develop a model with analytical and predictive use for planning education for work. A flow model and the Markov chain theory are applied to data from the University of Khartoum. Advantages and limitations of the model are also listed. (CT)

Discussion of the notion of readability focuses on predicting readability with computerized readability formulas. Semantic and syntactic factors are discussed, the development of readability formulas is described, and five commercially available computer readability formulas are reviewed, including the Readability Estimator, Readability Formulas,…

Explores the use of common sense testing and measurement as a means of predicting real-world performance. The authors discuss practical versus book knowledge, examine several empirical studies of practical intelligence, describe tacit knowledge and the instruments used for testing it, and present findings from a tacit knowledge research program.…

Discussion of information filtering (IF) and information retrieval focuses on the use of an artificial neural network (ANN) as an alternative method for both IF and term selection and compares its effectiveness to that of traditional methods. Results show that the ANN relevance prediction out-performs the prediction of an IF system. (Author/LRW)

A key strength of latent curve analysis (LCA) is the ability to model individual variability in rates of change as a function of 1 or more explanatory variables. The measurement of time plays a critical role because the explanatory variables multiplicatively interact with time in the prediction of the repeated measures. However, this interaction…

Many changes in college enrollment patterns have occurred since 1982. Three variables that affect enrollment include: differential fertility among population groups, a state's ability to retain students to high school graduation, and the number of a state's high school graduates who leave the state for college. (MLW)

Two methods used to predict enrollment at Montgomery College in Maryland are compared and evaluated, and the administrative context in which they are used is considered. The two methods involve time series analysis (curve fitting) and indicator techniques (yield from components). (MSE)