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…

Highlights the unifying role of metacognition in all levels of learner training. The article argues that one of the premises of any self-directed program should be that of enhancing students' metacognition to prepare them for their own learning autonomy. This paper describes an application of this principle including two examples of its use by…

Summarizes 19 papers presented at the Fourth International Conference on Teaching Statistics held in Morocco, July 1994. Papers presented were in five categories: (1) empirical studies on students' conceptions; (2) theoretical papers on teaching and learning; (3) assessment; (4) using computers in teaching probability and statistics; and (5) data…

Data analysis approaches for program evaluation under the conditions of natural experiments are explored, using evaluation of the DARE program of drug use prevention among elementary school students as an example. The suggested methodology uses multiple independent analyses to demonstrate the convergence or divergence of program outcomes. (SLD)

The Myers-Briggs Type Indicator was administered to five classes of students (n=161) at the beginning and end of their dental education to evaluate changes in personality type. The study showed 75.8 percent of students change type during their dental education using one standard, and 11.2 percent showed changes in personality using another…

Reports on a project that traced the moment-by-moment thought processes of 17 tertiary students enrolled in undergraduate distance education programs as they interacted with textual materials in private study settings. Data are presented on selected mediating processes, including evaluation, linking, strategy planning, generating, metacognition,…

Describes how Winnipeg public schools use an educational indicator system, including computer mapping graphics, to present indicator data to educational policymakers. Discusses issues and problems in the development and use of educational indicator systems, focusing on the relative importance of educational inputs, processes, and outcomes. (SV)

The Senate confirmation hearings concerning Robert Gates as director of the Central Intelligence Agency (CIA) highlight the problems evaluators share with the CIA of keeping policy imperatives out of the search for truth. The CIA at least has a structure for keeping information pure, but many evaluations do not. (SLD)

An error in the data analysis for a study reported in a 1988 paper by Kail is cited. The paper postulated a model that explained individual differences in the speed of processing on cognitive tasks. Reanalysis of the data suggested that support for the original conclusions is considerably weaker than reported. (LB)

Presents a nontechnical introduction to the field of statistics. Includes discussions on descriptive statistics, random variables, mean, standard deviation, standardized scores, and inferential statistics. Describes six statistical software packages available for IBM personal computers and compatibles. (KR)