| 摘要 |
The present invention relates to a learning system for providing questions by difficulty level with a difficulty level updating function by using a standard average rate of correct answer and a standard average problem-solving time of a learner. The learning system for providing questions by difficulty level, according to the present invention, is configured to individually process, by respondent, an examiner difficulty level provided by an examiner for a question, and an individual cumulative percentage of correct answers and the average and standard deviation of problem-solving time of a respondent for the corresponding question, with respect to whether an answer to the corresponding question is correct or incorrect and the time required for problem solving, and to calculate a standard average rate of correct answer and a standard average problem-solving time of the respondents for the corresponding question, and sum up the same, thereby providing a difficulty level updating function of the corresponding question. |
