Nine teachers in programs serving school-aged children or adults with severe disabilities received training on applying rules in data-based instructional decisions. After one-two years of implementation, the teachers' decision making and the effect of these decisions on student progress were evaluated. Some support was found for the benefit of…

Described is a technique for monitoring the quality of freshwater aquatic habitats. Methods, comparison of samples, equipment, and data analysis are discussed and an example is presented. (CW)

Investigates using computer spreadsheets in math classes. Describes current spreadsheets on the market. Summarizes how the spreadsheets work and provides information to build a template to find function maximums and minimums. Lists step by step instructions. (MVL)

A fairly traditional precalculus problem is modified to address some common concerns with the teaching of problem solving. Areas of problem solving which are illustrated include: posing the problem; modeling the problem; transforming the data; and examining the solution. (PK)

Comments on the ideas presented by Entwisle and Astone in this issue. Suggests that to produce sound measurements of children's socioeconomic background requires a substantial investment in coding, data collection, and management. Nevertheless, a standard set of racial-ethnic and socioeconomic variables, no matter how well measured, cannot serve…

Thirty-six libraries participated in a pilot project in which OCLC interlibrary loan (ILL) transaction data for borrowing and lending activity were reviewed. Data analysis and follow-up survey results supported the hypothesis that the Association of Southern Research Libraries directors would accept terms of ILL reciprocity that were based on…

Compares the trends of women's and men's world records for the 800-meter run using the linear and power regression capabilities of a graphing calculator. (MDH)

Argues that individual and group differences in priming performance scores are heavily influenced by overall speed and accuracy, and thus are a flawed reflection of internal activation of semantic priming. Suggests that meaningful comparison of groups on the activation underlying priming difference scores requires removing the effects of overall…

Assessed traditional and nontraditional women's and men's perceptions of ideal people in terms of personality traits and physiques. Findings from 80 male and 80 female undergraduates show that both traditional and nontraditional males and females favored a mesomorphic body type for males, androgynous for females. Nontraditionalists preferred…

Discusses the important role of graphs in conveying scientific information and the use of computer software in amplifying the value of graphs as tools for scientific investigation. Topics discussed include: skills required for analyzing and interpreting graphs, software design, and teaching and learning strategies. (JRH)

Reviews the controversy surrounding the work of Cyril Burt on the genetic contribution to mental ability and argues that the disparagement of Burt's results provides one of the most extraordinary cases of counterfeit charges in academic psychology. Suggesting genetic differences in brain size or intellect is politically incorrect. (SLD)

The posthumous condemnation of Cyril Burt destroyed his reputation and undermined his life's work on the genetic nature of differences in intelligence. Whether Burt falsified research findings or not, the real significance of the affair lies in what it teaches about scientific methodology and the fallibility of personal judgments. (SLD)

This article suggests the use of structural equation modeling in special education research, to analyze multivariate data from both nonexperimental and experimental research. It combines a structural model linking latent variables and a measurement model linking observed variables with latent variables. (Author/DB)

Examines two methods of differentially classifying language-delayed children as either specifically language impaired (SLI) or developmental-lag language impaired. Results indicated significant differences in classification between the two methods of defining SLI, as well as substantial changes in classification over time using either method. (47…

This paper reviews analytic methods for estimating growth curves or developmental trajectories from longitudinal data. Traditional models for studying change are contrasted with a relatively new method, hierarchical linear models. Evidence is presented indicating that hierarchical linear models can overcome some of the methodological limitations…