What Level of Tutor Interaction is Best?

Authors:
Leena Razzaq;Neil T. Heffernan;Robert W. Lindeman
Affiliations:
Computer Science Department, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts, USA;Computer Science Department, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts, USA;Computer Science Department, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts, USA
Venue:
Proceedings of the 2007 conference on Artificial Intelligence in Education: Building Technology Rich Learning Contexts That Work
Year:
2007

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Abstract

Razzaq and Heffernan (2006) showed that scaffolding compared to hints on demand in an intelligent tutoring system could lead to higher averages on a middle school mathematics post-test. There were significant differences in performance by condition on individual items. For an item that proved to be difficult for all of the students on the pretest, an ANOVA showed that scaffolding helped significantly (p