This Monte-Carlo study compared modified Newton (NW), expectation-maximization algorithm (EM), and minimum Cramer-von Mises distance (MD), used to estimate parameters of univariate mixtures of two components. Data sets were fixed at size 160 and manipulated by mean separation, variance ratio, component proportion, and non-normality. Results…

This paper examines how visual information strategies may be used to facilitate the development of mental models. Topics covered include: definition of mental models; mental models and visual information; mental modeling concepts; power of modeling, including examples related to physical science, mathematics, writing, and depth of processing;…

This catalog contains entries on new and important issues in support of entrepreneurial education in the United States. The bibliography contains five categories of entries: (1) articles; (2) books and reports; (3) curricula and textbooks; (4) videotapes and films; and (5) computer simulations and software. The information is presented in…

This paper addresses the problem of whether two-dimensional solutions with different apparent meanings and different implied interpretations of the number-correct scale could be produced from the same test data set by simply shifting the orientation of the two-dimensional projection plane. An artificial data set of 3,000 response vectors and a…

Four multidimensional data configurations and one unidimensional data configuration were simulated for three differences in mean difficulty between two tests to be equated. Two chi-square statistics, Q1 and Q2, were examined for their ability to detect multidimensionality. Results indicated that Q1 did not discriminate between any of the…

Designed to analyze systematically the relative effects of different types of oral reading errors on comprehension, this instrument consists of a basic set (each with an easy and a hard version) of six stories. Every story is transformed so that it contains simulated errors of a particular type: (1) correct, (2) semantically related visually…

Teaching geography is the topic of this annotated bibliography. The following kinds and amounts of materials are cited: (1) 9 citations from "Resources in Education" (RIE); (2) 10 citations from "Current Index to Journals in Education" (CIJE); (3) 37 commercially available "Student and Teacher Materials" (12…

Law-related education is the topic of this annotated bibliography. The following kinds and amounts of materials are cited: (1) 15 citations from "Resources in Education" (RIE); (2) 9 citations from "Current Index to Journals in Education" (CIJE); (3) 38 commercially available "Student and Teacher Materials" (9…

Provided is a collection of papers on computer literacy and simulation originally published in The Physiology Teacher, supplemented by additional papers and a glossary of terms relevant to the field. The 12 papers are presented in five sections. An affirmation of conventional physiology laboratory exercises, coping with computer terminology, and…

Although the effectiveness of role play and its vicarious learning experiences for counselor training is well documented, little research has focused on the impact of the order of playing the roles on skill development. To investigate the effect of ordinal position, 36 beginning counseling students, 24 female and 12 male, with a median age of 30,…

Reports a study indicating that significant shifts toward self-actualization in teachers can be achieved and that a small group simulation experience which entails personal inquiry, planning, performance, analysis of teaching, and self-evaluation is quite useful in that respect. (JT)

Explains a process wherein students construct a flickerbook that can simulate both transverse and longitudinal wave motion and can be used to demonstrate the relationship between velocity and frequency for constant wavelength. (GS)

Describes a group of systems analysis courses which utilizes a computer model of a company which makes house wire to provide a realistic representation of the complexities involved in industrial management. (CP)