Considerable thought, research, and concern has been expanded in an effort to determine whether the assumption of a quadratic relation between a single predictor and a criterion violated the assumptions which Johnson and Neyman (1936) state for calculating regions of significance about interacting regressions. In particular, there has been special…

In some correlational studies it is not reasonable to assume that bivariate observations are uncorrelated. An example would be a configural analysis in which two individuals are correlated across several variables (e.g., Q-technique). The present study was a Monte Carlo investigation of the robustness of techniques used in judging the magnitude of…

The purpose of this study was to ascertain if the American College Test (ACT) that is widely used for student assessment in American colleges and universities can be used as a screening instrument at the University of the Philippines. The design utilized correlational and discriminatory techniques for data involving academic factors, and computer…

Several procedures proposed in the literature for the analysis of growth curves are reviewed. Particular attention is given to the current issues in this area to guide practitioners in the selection of the most appropriate methodology. (Author)

The relationships between educator's innovation adoption behavior and attributes of innovations described by Rogers and Shoemaker are examined. Only one of the five hypothesized relationships was accepted. (DS)

This research provides an initial evaluation of an actuarial diagnostic testing program that is being conducted by the Psychometric Laboratory at the University of Texas Medical Branch, Galveston, Texas. It was hoped that an actuarial program for psychiatric diagnosis would create greater efficiency, lower cost, and superior validity with respect…

A pair of related experiments examined the psychometric properties on the Threat Index (TI), a theoretically based scale for the assessment of threat of death. The high reliability of the TI suggested its functioning as an index of stable conceptual orientation toward death. (Author)

Procedures are described for teaching statistical inference and decision-making without lengthy pre-requisite work in descriptive statistics and probability theory. (JLH)

This paper is the first of a series of studies that investigate a new multivariate theory of personality types or "styles". This theory suggests that any personality type or style consists of a specific combination of psychological defenses, cognitive and affective styles, belief and value systems, moral development, etc. (Author)

The present study was undertaken with two related goals: (a) to examine the relationships between the WRAT and CAT, and (b) to examine the relationships which may exist between these academic achievement tests -nd a standard intelligence battery such as the Wechsler Scale. (Author)

The ultimate goal of the institutional researcher is not always to test a research hypothesis, but more often simply to find an appropriate model to gain an understanding of the underlying characteristics and interrelationships of the data. Exploratory data analysis provides a means of accomplishing this. (Author)

A review of model-selection criteria is presented, suggesting their similarities. Some problems treated by hypothesis tests may be more expeditiously treated by the application of model-selection criteria. Multivariate analysis, cluster analysis, and factor analysis are considered. (Author/GDC)

An approximate relationship is devised between the unidimensional model used in data analysis and a multidimensional model hypothesized to be generating the item responses. Scale shrinkage is successfully predicted for several sets of simulated data. (Author/LMO)

A statistical model is proposed that describes the determination of an educational outcome variable as a nonlinear function of explanatory variables defined at different levels of a survey data hierarchy, such as students and classes. The theoretical and practical derivation of the model is discussed, and an example is given. (Author/BW)

Attempts to distill a growing technical literature on repeated-measures analysis of variance into a few simple principles for selecting an analytic technique. Argues that researchers ought not opt for a general analysis strategy when current computer technology makes it possible to select the optimal analysis technique for a given data set. (RH)