Considered stereotype change within a framework of dual process models. Using three experiments, manipulated task involvement, source credibility, and message quality. Findings proved dual process as appropriate when considering the processing of stereotype-disconfirming information and processing's impact on existing stereotypes. Different…

Examines retrieval theory in terms of free-text searching, citation analysis, and knowledge synthesis, and supports the claim that topical relevance relationships are not primarily matching relationships. Suggests that the assumption of topic matching between user needs and texts topically relevant to those needs is often erroneous. (51…

Presented is an alternative method for analyzing the van Hiele level of students' geometrical reasoning. The accuracy of students' answers may afford a description of acquisition and/or expertise for each of the van Hiele levels simultaneously rather than the traditional assignment and evaluation of one level at a time. (JJK)

Two groups of adolescents and a group of Coast Guard officials were interviewed about hypothetical political problems. Solutions presented were arrayed along a continuum of expertise, according to the complexity of subjects' political schemata and skills used in problem representation. (BC)

Discusses children's ideas about colored objects and colored shadows, with special attention to the organization of these ideas into mental models. The clarification of these models provides instructional tools that serve to assess and confront students' naive conceptions. Subjects were visitors to a science museum who engaged in interactive…

This paper argues that schema theory and discourse analysis demonstrate that flow charts, grids, and tree diagrams are the most effective models of how the mind organizes ideas in information sets. It shows how each of these frameworks can be used as the central device in an integrated model of language learning. (15 references) (MDM)

Discussion of courseware development focuses on a transaction shell approach that stresses flexibility and reusability of the courseware. Topics discussed include high-level programing languages, authoring languages, authoring systems, knowledge structures, and knowledge acquisition; and an example for applying the transaction shell approach to…

Describes an adventure activity in which a group achieved a seemingly impossible goal by changing the way it imagined the task. Discusses the sequence of steps in metaphor development that led to the triggering of a generative metaphor: a new image of the task that allowed reframing of the problem and its eventual solution. (SV)

Differences in the status of ontological categories on the concept maps of secondary-, undergraduate- and graduate-level chemistry students were analyzed with the "Pathfinder" scaling algorithm and multidimensional scaling. Results indicate differences among groups in the structural significance of abstract process-related nodes and…

Explores the utility of mental models as learning outcomes in using complex and situated learning environments. Describes two studies: one aimed at eliciting mental models in the heads of novice refrigeration technicians, and the other an ethnographic study eliciting knowledge and models within the community of experienced refrigeration…

A 32-item self-efficacy scale for computer programming was developed, primed to the C++ programming language. The scale was administered to 421 students at the beginning and end of an introductory course in C++ programming. There was growth in self-efficacy between two administrations of the scale 12 weeks apart, particularly for students who…

Describes a study that investigated whether scientific and nonscientific understandings in the same content area are linked. Finds that students' (n=107) explanations indicate that they were using an "if-then" type of reasoning which linked scientific and nonscientific conceptions. Contains 39 references. (Author/WRM)

In this introduction to a special issue on cognitive architectures and human-computer interaction (HCI), editors and contributors provide a brief overview of cognitive architectures. The following four architectures represented by articles in this issue are: Soar; LICAI (linked model of comprehension-based action planning and instruction taking);…

Presents a conceptual foundation for using concept mapping as a cognitive learning strategy and as a method for assessing structural knowledge; reviews the growing body of research related to both applications. Describes some of the conceptual and empirical limitations of concept mapping. (Author/AEF)

Examined cultural differences in amount and type of maternal scaffolding of children's learning and effects on children's performance at goal-oriented and free play. Participants were Iranian immigrant and Anglo-American mothers and preschoolers. Found that culture related to mothers' choice of scaffolding strategies, and that maternal sensitivity…