Dialogue Patterns : Expert vs . Non-expert Tutors

Studies of one-on-one tutoring have found that expert tutoring is more effective than non-expert tutoring, but the reasons for its effectiveness are relatively unexplored. Since tutoring involves deep natural language interactions between tutor and student, we study the tutorial dialogue patterns by comparing an expert tutor to nonexpert tutors. Our results show what behaviors constitute expertise and provide a basis for modelling effective tutorial language in intelligent tutoring systems.