posted on 2004-01-01, 00:00authored byVincent Aleven, Bruce M. McLaren, Odo Roll, Kenneth Koedinger
The goal of our research is to investigate whether a Cognitive
Tutor can be made more effective by extending it to help students acquire
help-seeking skills. We present a preliminary model of help-seeking behavior
that will provide the basis for a Help-Seeking Tutor Agent. The model,
implemented by 57 production rules, captures both productive and unproductive
help-seeking behavior. As a first test of the model’s efficacy, we used it
off-line to evaluate students’ help-seeking behavior in an existing data set
of student-tutor interactions, We found that 72% of all student actions represented
unproductive help-seeking behavior. Consistent with some of our
earlier work (Aleven & Koedinger, 2000) we found a proliferation of hint
abuse (e.g., using hints to find answers rather than trying to understand). We
also found that students frequently avoided using help when it was likely to
be of benefit and often acted in a quick, possibly undeliberate manner. Students’
help-seeking behavior accounted for as much variance in their learning
gains as their performance at the cognitive level (i.e., the errors that
they made with the tutor). These findings indicate that the help-seeking
model needs to be adjusted, but they also underscore the importance of the
educational need that the Help-Seeking Tutor Agent aims to address.
History
Publisher Statement
The original publication is available at www.springerlink.com