Several ways of using traditional analysis of variance to test the homogeneity of variance in factorial designs with equal or unequal cell sizes are compared using theoretical and Monte Carlo results. (Author/JKS)

A general statistical model for simultaneous analysis of data from several groups is described. The model is primarily designed to be used for the analysis of covariance. The model can handle any number of covariates and criterion variables, and any number of treatment groups. (Author/JKS)

The normal scores test for scale (variance) is presented as an alternative for evaluating the equality of dispersion for two independent populations. Test development is indicated as well as examples illustrating large and small sample situations. Reference is made to comparisons with the F, Mood, and Siegel-Tukey tests. (Author/JKS)

An analysis of variance model is recommended for data which display a peaked trend. These data are particularly common in psychological studies of stimulus generalization. A variety of hypotheses are suggested, and the testing of these hypotheses is illustrated. (Author/JKS)

Arguments are presented suggesting that single-subject research designs can form a basis for establishing a working relationship between researchers and clinicians in the field of learning disabilities. (Author/PHR)

Presents a hypothetical analysis and examples of potential application of canonical correlation, followed by discussion of several critical issues that should be recognized before the statistic is employed. A brief section is devoted to terminology and construction of a canonical correlation. (Author/JEG)

Reported is a study of the activities and performance of institutional review boards to protect human research subjects. Institutional review boards had some direct impact on half of the proposals reviewed. The data raised questions about the effectiveness of some review board action. (Author/MP)

The Scottish Council for Research in Education recognized in 1971 that research in the field of adult education could not be divorced from the associated employment and training of young workers. A program was developed that was designed to illuminate the complex variety of associations between education and aspects of employment and training.…

This note suggests a solution to the problem of achieving randomization in experimental settings where units deemed eligible for treatment "trickle in," that is, appear at any time. The solution permits replication of the experiment in order to test for time-dependent effects. (Author/CTM)

An examination of the concept of external validity from two theoretical perspectives: a traditional mechanistic approach and a dialectical organismic approach. Examines the theoretical and methodological implications of these perspectives. (BD)

This paper illustrates an application of Efron's bootstrap to the repeated measures design. While this approach does not require parametric assumptions, it does utilize distributional information in the sample. By appropriately resampling from study data, the bootstrap may determine accurate sampling distributions for estimators, effects, or…

The authors present a plan for vocational education research that could help decision makers focus on critical research areas. The plan is described in a schematic format that highlights the critical nature of vocational education research planning. A blending of policy and programmatic considerations is suggested. (Author/CH)

Uses Plato's "Meno" paradox to support the conclusion that atheoretical science is impossible. Argues that theory provides the foreknowledge of the objects of inquiry that makes it possible to recognize what one is looking for. Considers attempts at atheoretical inquiry to be bad science. (DMM)

A FORTRAN 77 program is described that computes both the different response success-error patterns and their summary statistics for learning and forgetting in fixed trial experiments using a two-stage Markov model. (Author/GDC)