Integrated feedback as networked activity: A systematic review of multi-source feedback in ESL/EFL writing through an activity theory lens

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In English as a second or foreign language (ESL/EFL) instruction, feedback plays a crucial role in students’ writing development. In authentic classroom settings, students often receive simultaneous feedback from multiple sources, such as teachers, peers, and machines, each offering its own advantages and challenges. Thoughtful integration of these diverse feedback mechanisms can enhance writing skills; however, there is still limited understanding of how to implement this approach effectively. This systematic review, drawing on third-generation activity theory (AT), investigates strategies for integrating multiple feedback sources in ESL/EFL writing classrooms. By analysing 24 empirical studies, the review highlights the synergistic benefits of multi-source feedback, identifying boundary practices (e.g. sequenced delivery, shared rubrics, class discussions, explicit peer-feedback training, and multi-draft cycles) and the productive role of contradictions (e.g. teacher workload constraints, inconsistent quality of peer feedback, the fallibility of machine systems, and the need to avoid over-reliance while promoting learner independence) as critical to successful integration. Building on these findings, we propose a four-layer pedagogical model that centers on (1) three core activity systems (teacher-mediated, peer-mediated, and machine-mediated), (2) boundary practices, (3) productive contradictions, and (4) emerging partially shared objects and expansive outcomes. The model provides educators with actionable, theory-grounded strategies for effectively incorporating different feedback sources in writing classrooms. The review concludes with recommendations for future research on integrated feedback in ESL/EFL writing.