Although considerable attention has been directed toward the value of peer assessment where learning is enhanced through maximizing the opportunities for students to share their work with others in the assessment process, very little work has been done to investigate the effects of the different types of learner role in peer assessment on learning. Therefore, this study investigated the effects of the assessor and assessees roles on learners metacognitive awareness, performance, and attitude. A particular focus is set on peer assessment as a leraning method. The analysis should help to answer...