Introduction: Role models are powerful contributors to residents' professional identity formation (PIF) by exhibiting the values and attributes of the community. While substantial knowledge on different attributes of role models exists, little is known about their influence on residents' PIF. The aim of this study was to explore surgical residents' experiences with role models and to understand how these contribute to residents' PIF.

Methods: Adopting a social constructivist paradigm, the authors used a grounded theory approach to develop an explanatory model for residents' experiences with role models regarding PIF. Fourteen surgical residents participated in individual interviews. The authors iteratively performed data collection and analysis, and applied constant comparison to identify relevant themes.

Results: Role model behavior is highly situation dependent. Therefore, residents learn through specific 'role model moments'. These moments arise when residents (1) feel positive about a moment, e.g. "inspiration", (2) have a sense of involvement, and (3) identify with their role model. Negative role model moments ('troll model moments') are dominated by negative emotions and residents reject the modeled behavior. Residents learn through observation, reflection and adapting modeled behavior. As a result, residents negotiate their values, strengthen attributes, and learn to make choices on the individual path of becoming a surgeon.

Discussion: The authors suggest a nuance in the discussion on role modelling: from 'learning from role models' to 'learning from role model moments'. It is expected that residents' PIF will benefit from this approach since contextual factors and individual needs are emphasized. Residents need to develop antennae for both role model moments and troll model moments and acquire the skills to learn from them. Role model moments and troll model moments are strong catalysts of PIF as residents follow in the footsteps of their role models, yet learn to go their own way.