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This study we compared giving hints proactively when students make errors to requiring students to task for a hint when they want one. We found that students learned reliably more with hints-on-demand than proactive hints. This effect was especially evident for students who tend to ask for a high number of hints.
Control
In this condition the only way to get the hints was to ask for them one at a time.
Experiment
In this condition when the wrong answer is typed in the box with the hint automatically opens.
Razzaq, L. & Heffernan, N. (2010). Hints: Is It Better to Give or Wait to be Asked? In Aleven, V., Kay, J & Mostow, J. (Eds) Proceedings of the 10th International Conference on Intelligent Tutoring Systems (ITS2010) Part 1. Springer. Pages 349-358.
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