The primary thesis of this paper is that James J. Gibson and Kurt Lewin and their followers subscribe to the central ecological notions of interdependence of organisms and their environments. An attempt is made to show the connections between Gibson's conceptualization of affordance, and the related Lewinian notion of psychological ecology.…

A model of graph comprehension is proposed including perceptual and memory processes. Multidimensional scaling (MDS), cluster analysis, and analysis of variance (ANOVA) were used to determine how college students with different mathematical experience read different types of bar graphs. Data were collected at the University of Oklahoma (Norman)…

The methodology of interpretation of qualitative data was explored using a grounded theory approach to the synthesis of data, examining the construction of categories in particular. The focus is on ways of organizing data and attaching meaning, as research problems embedded in cultural context are explored. A qualitative research training task…