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We explored two approaches for encouraging introductory programming students to use the web-based, self-assessment system, QuizPACK. An "organizational" approach applied specially constructed classroom quizzes, while the "technical" approach introduced adaptive guidance. Our studies demonstrated that each of these caused a dramatic increase in system use. This approach could be useful in many other contexts, when an educationally beneficial system is underused by students.
Brusilovsky et al. (Mon,) studied this question.