The use of analysis of covariance in simple repeated measures designs is considered. Conditions necessary for the analysis of covariance adjusted main effects and interactions to be meaningful are presented. (Author/JKS)

The procedures for (1) assessing the heterogeneity of a set of effect sizes derived from a meta-analysis, (2) testing for trends by means of contrasts among the effect sizes obtained, and (3) evaluating the practical importance of the average effect size obtained are described. (Author/PN)

An evaluation of open education was shown to produce misleading results due to probable regression phenomena. These questionable results are now spread throughout the literature of education, sociology, and psychology. Researchers are advised to review, not merely summarize, prior articles. (Author/PN)

A methodology of computing prescribed point biserial correlation coefficients and then evaluating the coefficients with respect to three criteria was developed. It can be used to assess the item convergent validity of nonobjectively scored test items. (Author/PN)

Proposes a data-based method for curriculum development that clearly displays priorities, provides a sound base for making curriculum decisions, and helps in eliminating community misunderstandings regarding those decisions (FL)

Describes a study of reliability among coders of information for meta-analysis (a quantitative procedure for synthesizing data in primary research reports) of research on life satisfaction in American adults. Identifies sources and areas of disagreement among coders and discusses measures that can be used to enhance intercoder consistency.…

This article offers a perspective from which to consider the dimensionality of data used in teaching social science concepts. The perspective is based on consideration and analysis of the dimensional nature of areal space. Tips are offered on using the procedures designed to describe and adjust the indices of empirical property space so that they…

Analyses of data from the March 1975 Current Population Survey reveal that Supplemental Security Income participation probabilities are positively related to the level of available benefits. Other factors such as limited information, stigma, and the bureaucratic complexities of the enrollment process appear to be significant barriers to…

The use of Bayesian and empirical Bayesian techniques to summarize results from parallel randomized experiments is illustrated using the results of eight such experiments from an SAT coaching study. Graphical techniques, simulation techniques, and methods for monitoring the adequacy of model specification are highlighted. (Author/JKS)

Glass's estimator of effect size, the sample mean difference divided by the sample standard deviation, is studied in the context of an explicit statistical model. The exact distribution of Glass's estimator is obtained and the estimator is shown to have a small sample bias. Alternatives are proposed and discussed. (Author/JKS)

Issues related to the decision of the number of factors to retain in factor analyses are identified. Three widely used decision rules--the Kaiser-Guttman (eigenvalue greater than one), scree, and likelihood ratio tests--are investigated using simulated data. Recommendations for use are made. (Author/JKS)

The performance of four rules for determining the number of components (factors) to retain (Kaiser's eigenvalue greater than one, Cattell's scree, Bartlett's test, and Velicer's Map) was investigated across four systematically varied factors (sample size, number of variables, number of components, and component saturation). (Author/JKS)

Restricted multidimensional scaling models, allowing constraints on parameters, are extended to the case of asymmetric data. Examples of several models are provided, using journal citation data. Possible extensions of the models are considered. (Author/JKS)

This study concluded that by incorporating the concept of role fit one can find women who typify either the image of the happy homemaker or the image of the frustrated homemaker. (CT)

The issues of faculty performance evaluation for allied health professionals are addressed. Daniel Stufflebeam's CIPP (content-imput-process-product) model is introduced and its development into a CIPP-SAPS (self-administrative-peer- student) model is pursued. (Author/CT)