Consider a large database of questions that assess the knowledge of learners on a range of different concepts. In this paper, we study the problem of maximizing the estimation accuracy of each learner’s knowledge about a concept while minimizing the number of questions each learner must answer. We refer to this problem as test-size reduction (TeSR). Using the SPARse Factor Analysis (SPARFA) fra...

This paper introduces SIFU, a system that recruits in real time native speakers as online volunteer tutors to help answer questions from Chinese language learners in reading news articles. SIFU integrates the strengths of two effective online language learning methods: reading online news and communicating with online native speakers. SIFU recruits volunteers from an online social network rathe...

the purpose of this study was to investigate two different techniques for testing reading comprehension questions. differences are measured by two different types of questions including inferential and referential questions. to answer the referential questions, the reader is required to move beyond the level of sentence comprehension and understand the relationship among the sentences. while, i...

Previous research suggests that intonation is a particularly challenging aspect of L2 speech learning. While most research focuses on speech production, we widen the focus and study the perception of intonation by L2 learners. We investigate whether advanced German learners of English have knowledge of the appropriate English intonation patterns in a narrative context with different sentence ty...

background and purpose: two important clinical education methods are problem-based and student-centered. however, education of “clinical decision-making skills” and “application of clinical knowledge” is important. usually training these cases is done in small groups . in this study, new method of scientific textbooks with four factors mentioned above has been implemented in large education gro...

This paper describes details of the evaluation experiments for questions created by an automatic question generation system. Given a target word and one of its word senses, the system generates a multiple-choice English vocabulary question asking for the closest in meaning to the target word in the reading passage. Two kinds of evaluation were conducted considering two aspects: (1) measuring En...

Although English has been taught for decades in Indonesia, the quality of multiple-choice question given to young learners was hardly examined. To touch on issue, this study aims at determining 10 questions (MCQs) a public elementary school terms difficulty level (P), discrimination power (D), and distractor efficiency (DE). This employed cross-sectional obtain information evaluate MCQs student...