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Exam (elaborations)
Realizing Adaptive Questions and Answers for ICALL Systems
3. Selecting Adaptive Questions 
In order to achieve the aims mentioned in the previous chapter, the QA function needs to 
generate a series of questions according to the following principles instead of blindly giving 
questions. 
(1) to give a tailored series of questions for each learner: questions that are too 
easy/difficult will reduce learner motivation. It is, therefore, desirable to give each 
learner questions of suitable difficulty. 
(2) to make learners use as many skills as po...