Simple modifications of principal component methods are described that have distinct advantages for structural analysis of relations among educational and psychological variables. The methods are contrasted theoretically and empirically with conventional principal component methods and with maximum likelihood factor analysis. (Author/GK)

The perfunctory use of factor scores in conjunction with regression analysis is inappropriate for many purposes. It is suggested that factoring methods are most suitable for independent variable sets when some consideration has been given to the nature of the domain, which is implied by the predictors. (Author/BW)

Presents a factor analytic study of the nine New York Longitudinal Study's (NYLS) temperament variables in a sample of 160 Swedish children from six months to two years of age. Asserts that results corroborated some of the NYLS's findings as well as those of other studies. (Author/MJL)

Canonical correlation and redundancy analysis are two approaches to analyzing the interrelationships between two sets of measurements made on the same variables. A component method is presented which uses aspects of both approaches. An empirical example is also presented. (Author/JKS)

In Korth and Tucker (EJ 131 795), the matrices T1 and T2 are defined as transformations for matching two factor patterns in a common space. Contrary to the statement of this article, however, T1 and T2 are not the matrices of eigenvectors from the matrices in (1) and (2) of the article. (Author/CTM)

This analysis indicated that the Crumbaugh Purpose-In-Life Test is suitable for use with adolescents, and contains two orthogonal dimensions: Despair and Enthusiasm. (Author/GK)

Order analysis, a technique to isolate unidimensional hierarchies representing multidimensional structure of binary data, is reviewed. Several theoretical flaws inherent in the probalistic version are presented. Suggestions of possible directions for future research are offered. (Author)

KONFIG is a program which performs a Configural Frequency Analysis for dichotomous data. The aim of the method is to identify types of persons with similar configurations in the values of the variables. The program is especially useful in analyzing large samples of persons in relation to number of variables. (Author/JKS)

Four tasks designed to measure curiosity and exploratory behavior were administered to 113 preschool boys and girls and 109 first- and second-grade girls. (JMB)

The issue of factor indeterminacy in factor analysis has been the subject of considerable debate in recent years. The same issue was also discussed widely in the 1920s and 1930s. The history of the issue, the literature on the subject, and parallels between early and modern work are discussed. (Author/JKS)

Problems in avoiding the singularity problem in analyzing matrices for optimal scaling are addressed. Conditions are given under which the stationary points and values of a ratio of quadratic forms in two singular matrices can be obtained by a series of simple matrix operations. (Author/JKS)

Tells how data from readership surveys have been combined to create a decision model that provides newspaper editors with a systematic procedure for evaluating standard newspaper features; reports on a study that examined one set of subjective decisions a researcher is faced with when using the decision model. (GT)

The problem of demonstrating invariance of factor structures across criterion groups is addressed. Procedures are outlined which combine the replication of factor structures across sex-race groups with use of the coefficient of invariance to demonstrate the level of invariance associated with factors identified in a self concept measure.…

A work ethic instrument was tested with 122 Catholic priests and nuns, 147 Catholic parishioners, and 293 university students employed part time. Factor analysis revealed four dimensions: hard work, nonleisure, independence, and asceticism. (SK)

The issue of indeterminacy in factor analysis and the debate between the proposed alternative solution and posterior moment position are explored in an article and 14 commentaries and rebuttals in two rounds. Implications for applied work involving factor analysis are discussed. (SLD)