Sampling distributions for ten tests for comparing population variances in a two group design were generated for several combinations of equal and unequal sample sizes, population means, and group variances when distributional forms differed. The ten procedures included: (1) O'Brien's (OB); (2) O'Brien's with adjusted degrees of freedom; (3)…

This is a critical review of the analytical models developed by the U.S. Army to predict training device effectiveness. The Simulation Systems Technical Area of the U.S. Army Research Institute for the Behavioral and Social Sciences performed the research. Special consideration is given to a family of models known collectively as TRAINVICE. These…

Free-form games are applicable to a range of problem-solving situations. This document discusses gaming as a procedure for organized study of the complex problems entailed in confrontations and crises. The major focus of the booklet is on the various forms of this game type, the kinds of problems to which it is best adapted, and some approaches to…

This report for researchers in rural sociology develops a conceptual and analytic framework for evaluating policies or programs through interrelated models. Three models--structural analysis, control programming, and simulation--allow researchers to assess policy/program impact, determine why expected impacts did or did not occur, and modify…

This paper describes and illustrates a simulation model for the processing of grammatical elements in a sentence, focusing on one aspect of sentence comprehension: the assignment of the constituent elements of a sentence to the correct thematic case roles. The model addresses questions about sentence processing from a perspective very different…

Problem solving is an essential skill in the study of genetics. Genetics problems have traditionally come from laboratory activities and textbook situations. Recently computer-based problems have been available to complement these standard sources. This report focusses on the use of computer-based problems in the study of genetics. Discriptions…

The present monte carlo simulation study was designed to examine the effects of multidimensionality during the administration of computerized adaptive testing (CAT). It was assumed that multidimensionality existed in the individuals to whom test items were being administered, i.e., that the correct or incorrect responses given by an individual…

A review of business German textbooks reveals that few give significant attention to accounting terminology. Both German majors and business majors enrolled in business German need to be introduced to the balance sheet and income statement. It is possible to devote one or two class sessions to accounting by limiting content to a minimal but solid…

A description is given of an instructional model used effectively in an inservice teacher program on classroom management. Based on pedagogical theory, the model consists of four steps. The initial step involves teachers personally in the problems, issues, and topics addressed by the program. Step two, concept formation, consists of strategies…

A complete bibliographic reference and an abstract are provided for each of 66 publications of the Human Factors Laboratory from 1979 through 1983, including in-house and contractor-developed documents. Documents are indexed by source, author, and subject matter. Publications address such topics as adaptive training, air combat maneuvering,…

A problem solving procedure known as the Tab Item was used with 21 undergraduate education majors who minored in reading to give the students an opportunity to apply their knowledge in a nonthreatening environment. The problem solving activity centered on a hypothetical fourth grade teaching position that opened at midyear. The students were told…

Over 60,000 secondary school and college students participate annually in the Model United Nations (UN) simulations in order to learn the complexities of international politics and to increase their understanding of other nations and cultural perspectives. This paper provides a broad overview of the Model UN program and its role in global…

This story, one of three in The Sexuality Decision-Making Series for Teens, contains several different possible plot lines depending on the decisions the reader makes for the characters at varous "choice points." The study focuses on the theme of birth control: when Christy and David decide to have sex, they have to face the…

This story, one of three in The Sexuality Decision-Making Series for Teens, contains several different possible plot lines depending on the decisions the reader makes for the characters at various "choice points." The story focuses on the theme of abstinence: Serena and James are in love and need to face the realities of their sexual…

An ethnographic study explored to what extent Trial Practice facilitates interpersonal skill development. Subjects, nine third-year law students enrolled at a large midwestern university law school, were observed over the course of a semester. Data collection included personal observations, informal interviews, fieldnotes, tape-recordings of…