A small multivariate data set is used to illustrate the usefulness of structure coefficients when interpreting results of educational experiments. Data are analyzed using a multivariate analysis of variance (MANOVA), and results are interpreted in three different ways to determine the contribution of individual variables to prediction: (1) using…

Some interpretations of relative variable importance in the contexts of multivariate analysis of variance (MANOVA) and discriminant analysis (DA) are presented. Some indices potentially useful for the interpretations are presented, and the assessment of variable importance is illustrated using real data sets. Both descriptive discriminant analysis…

Commonality analysis may be used as an adjunct to general linear methods as a means of determining the degree of predictive ability shared by two or more independent variables. For each independent variable, commonality analysis indicates how much of the variance of the dependent variable is unique to the predictor and how much of the predictor's…

Advantages of the use of multivariate commonality analysis are discussed and a small data set is used to illustrate the analysis and as a model to enable readers to conduct such an analysis. A noteworthy advantage of commonality analysis is that commonality honors the relationships among variables by determining the degree to which predictors in a…

The use of characteristic coding (dummy coding) is made in showing solutions to four multivariate problems using canonical analysis. The canonical variates can be themselves analyzed by the use of multiple linear regression. When the canonical variates are used as criteria in a multiple linear regression, the R2 values are equal to 0, where 0 is…

The relationship between analysis of variance (ANOVA) methods and their analogs (analysis of covariance and multiple analyses of variance and covariance--collectively referred to as OVA methods) and the more general analytic case is explored. A small heuristic data set is used, with a hypothetical sample of 20 subjects, randomly assigned to five…

An analysis of the effects of three kinds of teacher comment (social-comparison, subject-matter,and intraindividually oriented) accompanying grades in mathematics is presented. Subjects were 385 students from grades 6 through 10. In analyses of variance, an interaction between type of comment and the student's prior performance level was revealed…

Variance formulas of H. E. Daniels and M. G. Kendall (1947) are generalized to allow for the presence of ties and variance of the sample tau correlation. Applications of these generalized formulas are discussed and illustrated using data from a 1965 study of contraceptive use in 15 developing countries. (SLD)

This study investigated continuing motivation for hard and easy tasks and subjects' judgements of selected learner characteristics purported to be related to learning and motivation. The data were collected through subjects' self-reports on a Student School and Work Survey questionnaire. The subjects were approximately 100 males and 100 females…

Review of a research study designed to determine the relationship between participation in supervisory training and managerial performance focuses on the importance of adequate evaluation. Dependent and independent variables used are described, statistical analyses are explained, and implications for future research design are presented. (LRW)

This paper reports the results of a Monte Carlo investigation of Type I errors in the single group repeated measures design where multiple measures are collected from each observational unit at each measurement occasion. The Type I error of three multivariate tests were examined. These were the doubly multivariate F test, the multivariate mixed…

Discusses attribution theory and its effect on teachers' attitudes toward students and describes a study of 155 elementary teachers in Costa Rica that investigated the consequences of the teachers attributing student performance to low ability and to insufficient effort. Cultural values that may affect the outcomes are also discussed. (28…

Discussion of the display of instructional text and text format elements focuses on a study of fourth graders that was conducted to test the effects of plain and enhanced screen designs on learning and time during computer-assisted instruction (CAI). Implications for screen design and future research are suggested. (31 references) (LRW)

Data from the Gallup Polls of Public Attitudes Toward Education, administered in 1974, 1977, 1980, and 1983, were re-analyzed using multivariate analysis methods. An attempt was made to determine what segments of the public demonstrated support or non-support for the public schools. Survey responses were available for over 1500 people for each…

Describes a study conducted at the University of Groningen (Netherlands) that investigated the effectiveness of a computer-based training program for use with an automated system for retrieving legal information. Hypotheses tested are explained, computer-based versus traditional instructional methods are compared, and implications for further…