Tag clouds generated in social tagging systems can capture the collective knowledge of communities. Using as a basis spreading activation theories, information foraging theory, and the co-evolution model of cognitive and social systems, we present here a model for an "extended information scent," which proposes that both collective and individual…

The current study proposes a new procedure for separately estimating slope change and level change between two adjacent phases in single-case designs. The procedure eliminates baseline trend from the whole data series before assessing treatment effectiveness. The steps necessary to obtain the estimates are presented in detail, explained, and…

Shared databases are used for knowledge exchange in groups. Whether a person is willing to contribute knowledge to a shared database presents a social dilemma: Each group member saves time and energy by not contributing any information to the database and by using the database only to retrieve information which was contributed by others. But if…

Examines a model for measuring children's verbal interactions in small heterogeneous or homogeneous cooperative groups using computers. Considers research design, type of task, and data collection and analysis. Concludes that a model incorporating cognitively oriented and socially oriented talk will expand understanding of the nature of children's…

This document contains 48 papers from a conference on agricultural education research. The following papers are among those included: "Analysis of the Relationships between Computer Experiences, Self-Efficacy, and Knowledge of Undergraduate Students Entering a Land-Grant College of Agriculture" (Donald M. Johnson, Melissa L. Lester,…