A Multi-facet Rasch Measurement of Peer Evaluation in Computerized Dynamic ESL Writing

Computerized Dynamic assessment (C-DA) integrates ESL (English as a Second Language) teaching with assessment online by providing mediation to help learners perform beyond their independent functioning and promote learner development. A Multi-facet Rasch measurement was used in peer evaluation of dynamic writing with 41 students to explore the reliability of Peer Assessment (PA) in C-DA process of second language writing. The findings suggested that the overall consistency of peer assessment has been maintained in proper range and Peer Assessment can be effectively applied to the dynamic assessment of second language writing with the support of Peerceptiv Peer Assessment System.