A modification index is presented to aid in reformulating hypothetical models rejected after analysis of empirical data. This index is an improvement over the one in the LISREL V computer program in that it takes into account changes in all parameters of the model when one parameter is freed. (SLD)

Examines the contents and objectives of various statistical computing courses that could be designed to meet the appropriate data analytic and statistical needs of a variety of professionals. Highlights include a definition of statistical computing; statistical methods; data analysis; and the design and construction of statistical computer…

Reviewed are the basic concepts of experimental design, analysis of data, and optimization. Discussed are two-level factorial designs; fractional factorial designs and blocking, additive, linear, and quadratic models; quadratic and composite designs; and designing experiments in design. (CW)

For anchor test equating, 3 linear observed score methods are derived for populations differing in ability. Each version requires that the correlations of the tests with the selection variable be known. Five sets of assumptions are made for each model--yielding 15 methods--which are then related to existing methods. (SLD)

Combinations of five methods of equating test scores and two methods of selecting samples of students for equating were compared for accuracy, using data from the administration of the Scholastic Aptitude Test to more than 115,000 students. Implications for research and practice are discussed. (SLD)

Combines meta-analysis and process analysis to clarify the nature and magnitude of gender differences in cognitive, psychosocial, and physical tasks and their implications for mathematics and science careers. Findings indicate that learning and working environments should be redesigned to promote gender equality. (FMW)

Results from a study of students from two high schools indicate that by using data from students' permanent records, dropouts could be differentiated with 66 percent accuracy in third grade and with 85 percent accuracy by ninth grade. School-attending nongraduates could be identified with 77 percent accuracy by ninth grade. (IAH)

This study, based on a national probability sample of 15- to 19-year-old women, showed that adolescent women raised by a single parent were more likely to have nonmarital sexual intercourse than were young women from intact marriages. However, this effect was diminished by controlling for age and race, social class, and religion. (TE)

Results of a recently implemented British rating scale for universities are analyzed to obtain a multidimensional picture of the government funding agency's perceived research rankings of the institutions. The analytical method and results are discussed. (MSE)

Two experiments, with 300 adult women as subjects, studied the effects of laboratory training on the use of the Conjunction Rule, a principle of probability that is often violated. Learning alternative strategies enabled trained subjects to use extensional reasoning rather than intensional heuristics. (SLD)

Functional and structural relationship alternatives to the standard "F"-test for analysis of covariance (ANCOVA) are discussed for cases when the covariate is measured with error. An approximate statistical test based on the functional relationship approach is preferred on the basis of Monte Carlo simulation results. (SLD)

Data and statistics on the degrees conferred by U.S. pharmacy schools are presented. This report serves as an indicator of the pharmacy schools' output of pharmacy practitioners. Tables are analyzed by entry level degrees, postbaccalaureate PharmD, graduate degrees, gender, and ethnic minorities. (MLW)

Cites court rulings that the plaintiff must identify the causal relationship between a statistical imbalance and specific employment practices. Indicates that university promotion, tenure, and salary decisions will be upheld if the judgments are based on a merit system with the criteria of teaching, research, and service. (MLF)

Examines trends in authorship, reference practices, and quantitative techniques in "College and Research Libraries" from 1939 through 1988. Specific characteristics discussed include: percentages of unreferenced articles; average number of references per article; sex and institution of source authors; extent of collaborative authorship;…

A field-based exercise which illustrates one aspect of how leaves in multilayered trees take advantage of light microenvironments is presented. Procedures, tree selection and data analysis are discussed. (CW)