[[alternative]]Design and Study of a Network-Based PeerAssessment System

[[abstract]]Peer assessment, an alternative assessment different from traditional ones, has been widely used in various fields recently. By having students with similar learning background and mature sense of knowledge resulting in assessing each other and providing with feedback, peer assessment can promote both students' high-level thinking skills and their learning motivation. With the rapid development of computer and network, it is possible to process and present data instantly; moreover, it is also possible to implement peer assessment on web-based platform instead of by paper and pencil. In the early stage of using computer and network technology as an instrument of peer assessment, there were divergent approaches in appraising learner’s presentation and demonstrating feedback on the Internet, for example using excel through email or demonstrating learning outcomes through the web-based platform. At the present time, the peer assessment system has combined learning presentation with demonstrating feedback firmly. Research about web-based peer assessment system suggests that there are several implementation problems requiring to be solved. First, there is no adequate solution to dispatch reviewers. Second, two-way communication between reviewers and authors is necessitated. Third, checking grading bias is vital. The aim of this study was threefold: to solve problems described above, to address the importance of the design of peer evaluation, and finally, to provide preventing and checking strategies to reduce the grading bias and make the evaluationas just and objective as possible.