Trust-based peer assessment for virtual learning systems

  • Authors:

  • Milorad Tosic;Valentina Nejkovic

  • Affiliations:

  • Intelligent Information Systems Lab, Department of Computer Science, Faculty of Electronic Engineering, University of Nis, Serbia;Intelligent Information Systems Lab, Department of Computer Science, Faculty of Electronic Engineering, University of Nis, Serbia

  • Venue:
  • SocInfo'10 Proceedings of the Second international conference on Social informatics
  • Year:
  • 2010

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Abstract

In order to deal with new requirements imposed by emerging learning environments following social computing paradigm, we address the problem of assessment of individual student skills, contributions, and activities. Rather then clicking links to launch tools or to view content, such learning environments encourage more of a monitoring mode of operation that is very difficult to sense and record by the software alone. In this paper we propose adoption of peer-assessment approach in order to overcome the obstacle as well as to make the overall solution scalable. We propose a novel method for students peer-assessment based on trust concept. The overall approach is presented and practical experiments are conducted using developed web service. The grade scores determined by the learning peers/students are statistically proven as highly correlated with those marked by the teachers, indicating that approach proposed in this paper may be adopted as a legitimate assessment method.