Communication Adjustment in Engineering Professional and Student Project Meetings.

participants adjusted their communication style to the behaviour of other people and to different communication settings. This happened with three different dynamics: micro-level (grounding processes in conversation), mezzo-level (emotional and rational regulation) and macro-level (over a period of time). Originality: a new theory was presented for the process of team behaviour during project meetings; specifically, role adoption and communication behavioural changes. Participants change their team roles within three different dynamics: at the macro-, mezzo- and micro-levels, corresponding to the organisation, project and meeting, respectively. The changing of team roles in project meetings arises from rational and emotional regulation. The findings have the potential to assist managers and supervisors to better understand and manage the team dynamics on their projects.