How Web site organization influences free recall, factual knowledge, and knowledge structure density

Past research has demonstrated that nonlinear Web presentations (i.e., those that allow viewing in multiple orders) may lead to decreased free recall and learning of factual information compared to traditional, print-like linear Web designs. Recent evidence suggests, however, that nonlinear designs may facilitate learning of the interconnectedness of the presented information. This article presents experimental data from a combined sample of college students and adults (N = 172) manipulating site design and motivation designed to test for these various learning effects and to examine the potential influence of two mediating variables: selective scanning and elaboration. The central finding is that linear site designs encourage factual learning, whereas nonlinear designs increase knowledge structure density (KSD). The effects of elaboration and selective scanning, however, are mixed.