Accession Number : ADA282167

Title :   An Empirical Evaluation of Knowledge, Cognitive Style and Structure Upon the Performance of a Hypertext Task.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s) : Korthauer, Ralph D.

Report Date : DEC 1993

Pagination or Media Count : 72

Abstract : The increased usage of computer-based text, specifically hypertext, has lead to new capabilities in information presentation. As a direct result of the greater flexibility and multiple paths within hypertext (non-linear computer-based text), users frequently become lost while navigating through a document. The majority of efforts to solve the navigation problem have focused on the hypertext document, rather than cognitive aspects of the user. The objective of this study is to evaluate the effects of an individual's cognitive characteristics in conjunction with the nature of the hypertext task. Of particular interest is the interaction between hypertext presentation (with explicit or inherent structure), cognitive style (field independence or field dependence) and level of knowledge (experienced or naive). While previous research has focused on various portions of the dimensions of structure, it is hypothesized here that the three factors contributing to structural usage interact with one another and should be considered simultaneously, as a system, in the design of hypertext displays.

Descriptors :   *COGNITION, *TEXT PROCESSING, *COMPUTER APPLICATIONS, COMPUTERS, DOCUMENTS, INTERACTIONS, MAJORITIES, NAVIGATION, PATHS, COMPUTER OPERATORS.

Subject Categories : Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE