Compares the effectiveness of two approaches to decreasing user navigation problems in hypertext: providing maps, and constraining the hypertext structure. Finds that for learning details, linear formats should be retained; whereas for more global overall learning, a constrained structure is a good alternative. (SR)

A study examined what happened when a group of adult students read a hypertext for the goal of answering specific questions. Subjects, 30 students enrolled in an upper-division psychology course at a state university in the northwestern United States, read a binary tree-structured hypertext to answer three two-part questions on the topic of…

Finds that a graphical browser (a graphical representation of the structure of a hypertext document) had no effect on recall, comprehension, or recall of text structure but that it did increase the amount of text read by users and reduced the number of nodes repeated during reading. (SR)