this research compared ratings of task performance and contextual performance from three different sources: self, peer, and supervisor. participants were service industry employees in the service industries in yogyakarta, indonesia. a sample of 146 employees and 40 supervisors   from the service industries provided ratings of task performance and contextual performance. the results indicated th...

In this study, the researcher used the many-facet Rasch measurement model (MFRM) to detect two pervasive rater errors among peer-assessors rating EFL essays. The researcher also compared the ratings of peer-assessors to those of teacher assessors to gain a clearer understanding of the ratings of peer-assessors. To that end, the researcher used a fully crossed design in which all peer-assessors ...

This research compared ratings of task performance and contextual performance from three different sources: self, peer, and supervisor. Participants were service industry employees in the service industries in Yogyakarta, Indonesia. A Sample of 146 employees and 40 supervisors   from the service industries provided ratings of task performance and contextual performance. The results indicated th...

The goal of this research was to investigate the difference in results of prevalence of peer violence when using different measurement approaches (definitional and behavioral) and different data collecting methods (self-rating, peer rating, peer nomination, self-nomination). The article presents results from two different researches on two samples of school-aged children from two towns in Slavo...

We examined the influence of accountability on the consistency of peer ratings and quality of peer feedback by comparing three conditions: only rating accountability, only feedback accountability, or both rating and feedback accountability. From a large undergraduate course, 287 students’ peer ratings and peer feedback were coded for rating consistency, comment helpfulness, amount of feedback, ...

In recent years, many distributed rating systems have been proposed against the increasing misbehaviors of peers in peer-to-peer (P2P) networks. However, the low accuracy, long-response time and vulnerabilities under the adversary attacks of P2P rating systems have long been criticized and hindering the practical deployment of such a mechanism. There is also a lack of systematic analysis and ev...

In order to deal with free riding in P2P system, incentive mechanism or rating system is presented, and each user rating is computed by itself, which causes that some users exaggerate their ratings. In this paper, three aspects are developed for free riding and for improving service performance in P2P. First of all, it is useful to keep away fake rating that each user rating is calculated by th...