Cohesion and Learning in a Tutorial Spoken Dialog System

Arthur Ward, Diane Litman

Two measures of lexical cohesion were developed and applied to a corpus of human-computer tutoring dialogs. For both measures, the amount of cohesion in the tutoring dialog was found to be significantly correlated to learning for students with below-mean pretest scores, but not for those with above-mean pre-test scores, even though both groups had similar amounts of cohesion. We also find that only cohesion between tutor and student is significant: the cohesiveness of tutor, or of student, utterances is not. These results are discussed in light of previous work in textual cohesion and recall.

Subjects: 1.3 Computer-Aided Education

Submitted: Feb 13, 2006


This page is copyrighted by AAAI. All rights reserved. Your use of this site constitutes acceptance of all of AAAI's terms and conditions and privacy policy.