“…Therefore, CAS is proved to be very useful for postgraduate research supervision (Nordentoft et al, 2013), which has faced many challenges, such as the decreasing supervisor‐student ratio and the increasing pressure for timely completion and active supervision (McCallin & Nayar, 2012). CAS has been implemented to tackle these challenges (e.g., Wichmann‐Hansen et al, 2015; Boud & Lee, 2005), as it encourages peer feedback in addition to supervisor's feedback (Wisker et al, 2007; Rushton et al, 2017) and aims to promote students' academic participation and research capacity (Fenge, 2012). Stracke (2010), for instance, set up peer group meetings in a doctoral programme, with the supervisor playing a moderator's role.…”