一句话：通过定性分析570份同伴评价，细化了软件工程课程项目中四类队友行为的定义，并提炼出28项行为特征。
该研究关注软件工程课程项目中同伴评价如何塑造学生对公平与可靠性的感知，并检验四类队友（Couch Potatoes、Hitchhikers、Lone Wolves、Good Teammates）的既有定义。作者对高年级SE项目课程的570份同伴评价进行定性分析，重点编码开放式文本中对队友标签的理由。结果细化了四类行为画像：Good Teammates主动、响应及时、技能强、守时且乐于助人；Couch Potatoes持续不投入；Hitchhikers总体负面但偶尔求助或贡献，呈连续谱而非二元角色；Lone Wolves兼具孤立/支配性与高价值的大量贡献。研究还提炼出包含28项行为特征、5个高层类别的可复用编码手册，可指导同伴评价量规与干预设计。
Context: Collaborative work is central to software engineering (SE) education, yet students often encounter unequal participation that shapes their perceptions of fairness and reliability. Prior research has classified teammates as Couch Potatoes (minimal contributors), Hitchhikers (credit-sharers with little effort), Lone Wolves (independent workers), and Good Teammates (active, equitable collaborators). Goal: We investigated how students describe these four teammate types' behaviors in SE course projects to uncover the perceived characteristics defining each type. Method: We qualitatively analyzed 570 peer evaluations from a senior-level SE project course, focusing on open-text justifications of teammate labels. Results: Our findings refine existing definitions by grounding them in students' language and capturing both negative and positive aspects. Good Teammates were described as proactive, responsive, skilled, punctual, and helpful. Couch Potatoes were seen as consistently disengaged. Hitchhikers, while largely negative, occasionally sought help or contributed, suggesting a spectrum rather than a binary role. Lone Wolves paired isolation and dominance with valuable, high-volume contributions. Conclusion: These insights offer a more nuanced, empirically grounded view of teammate behaviors, and a reusable codebook of 28 behavioral characteristics organized into five high-level categories, guiding instructors in designing peer evaluation rubrics and interventions that foster balanced participation.
@inproceedings{GanduVKMGST26,
title = {How Do Students Perceive Their Teammates? A Qualitative Study of Peer Evaluation in SE Course Projects},
author = {Sahithya Gandu and Anurag Vemula and Satyanarayanachowdary Kadiyala and Márcia Moraes and Sudipto Ghosh and Fabio Santos and Bianca Trinkenreich},
booktitle = {FSE},
year = {2026},
doi = {10.1145/3803437.3805781}
}