A comparative evaluation of a natural language exploration tool within a hypermedia environment

Examines the pedagogical effectiveness of a natural language exploratory tool developed to supplement a hypermedia learning environment. The learning environment includes an authoring tool with which the relationships between entities can be easily expressed. These relationships are utilised directly by a natural language interface to engage the learner. By closely analysing the activities of learners using the tool, this study compares natural language exploration with the basic interaction provided by hypermedia environments. To facilitate this study, extensive data was compiled using both qualitative and quantitative techniques. Analysis of learner interactions revealed differences in their interactive behaviour. The group engaged in a discourse was more likely to be examining a coherent set of entities at any one time, and was less likely to experience feelings of disorientation. It is concluded that the natural language tool supports a wide range of learning styles.