In this study we investigate the interrelation between neuroticism, education, smoking and health. Two lines of research are brought together: one studying the relationship between neuroticism and health and the other studying the association between education and health. As lower educated people more often score high on neuroticism, we study the…

Human patient simulators are widely used to train health professionals and students in a clinical setting, but they also can be used to enhance physiology education in a laboratory setting. Our course incorporates the human patient simulator for experiential learning in which undergraduate university juniors and seniors are instructed to design,…

Purpose: This study examines the relationship between resident satisfaction and staff perceptions of the work environment in assisted living. Staff perceptions were assessed at the facility level, using aggregate measures of staff job satisfaction, organizational commitment, and views of organizational culture. Design and Methods: The sample…

The use of directional and nondirectional hypothesis testing was examined from the perspectives of textbooks, journal articles, and members of editorial boards. Three widely used statistical texts were reviewed in terms of how directional and nondirectional tests of significance were presented. Texts reviewed were written by: (1) D. E. Hinkle, W.…

Sequential probability ratio testing (PRT), which usually is applied in situations requiring a decision between two simple hypotheses or a single decision point, is extended to include situations involving k decision points and [(k + 1)-choose-2] sets of simultaneous, simple hypotheses, where k>1. The multiple-decision point or…

Multiple-hypothesis testing in the context of a correlation matrix is used to compare the statistical power of the original Bonferroni with six modified Bonferroni procedures that control the overall Type I error rate. Three definitions of statistical power are considered: (1) the ability to detect at least one true relationship; (2) the ability…

The relationship between residence and fertility among women living in rural and urban areas of Costa Rica was examined. (JC)

A description of a fully operational AI-CAI system which incorporates artificial intelligence techniques to perform question answering, hypothesis verification, and theory formation activities in the domain of electronic trouble-shooting. (Author)

This paper assesses the relative merits of numerical and textual approaches to the study of international events. While enjoying a much longer history, numerical approaches have certain representational drawbacks that do not apply to textual approaches. Textual models provide a more adequate descriptive foundation for the study of international…

This paper is concerned with estimation and hypothesis testing of treatment effects in nonequivalent control group designs with the assumption that in the absence of treatment effects, natural growth conforms to a particular class of continuous growth models. Point estimation, interval estimation, and hypothesis testing procedures were developed…

This paper discusses four criteria for selecting covariates when utilizing the analysis of covariance in quasiexperimental research: completeness, causation, independence, and fallibility. Completeness is the extent to which the known or suspected sources of bias are accounted for by covariates used in an experiment. Causation is the requirement…

The mathematical extension from scalars to matrices as a prerequisite for univariate to multivariate generalizations of statistical concepts and methods is discussed. One reason for several alternative techniques is the multitude of ways to generalize from univariate concepts to multivariate concepts. The additional complexity, and lack of…

The present investigation developed power curves for two parametric and two nonparametric procedures for testing the equality of population variances. Both normal and non-normal distributions were considered for the two group design with equal and unequal sample frequencies. The results indicated that when population distributions differed only in…

Science is often referred to, particularly in curriculum documents, as one way of knowing, one way of describing, classifying, and understanding our universe. For students to become scientifically literate, they need "to engage in the discourses … about science" (Eastwell, 2002), so developing an understanding of the nature of science…

Described is a method for obtaining an oblique simple structure in which primary axes are principal axes of homogeneous subsets of test variables. Examples of its application in R and Q-type analyses are presented. (Author)