Factors Influencing Unfair Behavior in Peer Assessment: Evidence from a Situational Experiment

We explored the influence of different factors on unfair behavior in peer assessment and designed interventions aimed to reduce the occurrence of unfair behavior. Different peer information will affect students' attitudes and behavior toward peer assessment. We analyze the influence of different helpful reviews. Based on social value orientation theory, we developed novel information frameworks in combination with cooperation (e.g., your behaviors benefit others) and competition (e.g., your behaviors benefit yourself more than others). We invited real students who use peer assessment to a situational experiment, conducted a covariance analysis, . We tested peer reviews that provided different levels of helpfulness and found that high review helpfulness helped reduce the incidence of unfair behavior. Both the competition and cooperation frameworks can effectively reduce the occurrence of unfair behavior, with the competition framework more effective. Our work identifies the influence of peer information on unfair behavior in peer assessment, and the results suggest that use of an information framework could reduce this behavior. Our research extends studies of peer assessment and provides feasible practical methods.