This study investigated junior high school students' use of problem-solving heuristics and metacognitive processes and the relationships that might exist between the students' use of these processes and their cognitive style. Using a computer microworld called "Nimbot" based on the ancient game of Nim, 10 seventh- and eighth-grade…

The Critical Decision Method (CDM) is a structured interview method for eliciting expert knowledge. The method was used in a study of computer programmers who were experts at debugging complex computer systems. Fifteen programmers who were identified by their supervisors as experts were asked to describe an experience in which their expertise made…

Practitioners and theorists have given attention recently to the role and status of research activities in Canadian university continuing education units. For individuals in units that are increasing the proportion of their organizational activities devoted to research, there will be an ongoing process of cognitive change and development as a new…

This paper discusses the principles underlying discriminant analysis and constructs a simulated data set to illustrate its methods. Discriminant analysis is a multivariate technique for identifying the best combination of variables to maximally discriminate between groups. Discriminant functions are established on existing groups and used to…

The application and utility of confirmatory second-order factor analytic methods are discussed. Factor analysis is central to concerns regarding measurement validity. Confirmatory methods are especially useful because they explicitly consider measurement error influences and because the methods are inherently theory-driven and theory-oriented.…

A student's fear of giving oral reports and the instructor's objection to using too much class time on oral reports are often seen as the major barriers that prevent an oral communication unit from being included in a business or management communications course. One approach to easing both concerns is the use of videotaping as a self-discovery…

Since observers' memory-based ratings of organizational phenomena provide data in research and decision-making contexts, bias in observers' judgments must be examined. A study was conducted to explore the extent to which leader behavior ratings are more generally biased by the availability heuristic. The availability heuristic is operative when a…

"Cognoter(tm)" and "CB" software, two new computer-based writing tools that rely on shared texts and real-time communication among participants and support collaborative invention, have implications for invention pedagogy and research. Cognoter improves on current invention aids by combining a brainstorming tool, a graphical…

This paper briefly reviews research on tasks in knowledge-rich domains including developmental studies, work in artificial intelligence, studies of expert/novice problem solving, and information processing analysis of aptitude test tasks that have provided increased understanding of the nature of expertise. Particularly evident is the finding that…

This paper describes the MAIS and presents the BASIC programming code for the heuristic employed in this expert tutor management system, which is based on the findings of investigations of the direct connections among such learning environment factors as individual differences, cognitive learning theory, instructional technology, subject matter…

Arguing that an explicit representation of the problem-solving method of an expert system shell as abstract control knowledge provides a powerful foundation for learning, this paper describes the abstract control knowledge of the Heracles expert system shell for heuristic classification problems, and describes how the Odysseus apprenticeship…

This paper discusses the incorporation of heuristics in computerized decision aids that are used for structuring decision problems. Decision theory is described in terms of linked subsystems, and sites where it is necessary to employ heuristic rather than normative, algorithmic procedures are identified. Production systems are then used to…

One hundred undergraduate students at a large southern university were the subjects of a study to determine whether the persuasion process encompasses two mutually exclusive strategies--systematic or heuristic processing of information--or whether the two processes are, in fact, independent. Subjects participated in groups of about l5 and were…

Technical writing instructors lack a framework for evaluating pedagogical materials. One framework for classification divides the pedagogical materials into three groups: those locating their heuristics in form, context, and method. Formal pedagogies (the modes, sentence generation) can produce generic writing, separated from audience, purpose,…

Program theory can be used to improve programs and policies. This article describes a set of techniques for complicating and simplifying program theory, referred to as conceptual and action heuristics. Methods such as analyzing metaphors, clarifying concepts, mapping, component assessment, causal modeling, and decision analysis are discussed. (JAZ)