Background Grounded theory (GT) has become one of the foremost tools in qualitative nursing research. There are different approaches to GT but a feature common to all of them is theoretical sensitivity, which facilitates GT’s iterative process. However, differences between the approaches in how to apply theoretical sensitivity and how much influence existing knowledge should play have contributed to tribalism.

Aim To critically evaluate the role of theoretical sensitivity and reflexivity in GT and the involvement they can have, as well as explore what steps researchers can take to improve their insight.

Discussion Theoretical sensitivity enables researchers to steer their studies to answer their research questions, gain insight into their study’s findings and develop theory grounded in the data. However, reflection is required for researchers to understand their effect on the theories that emerge, prevent them from applying preconceived ideas and allow for the unfettered emergence of theory.

Conclusion Researchers who do not demonstrate insight into their own philosophical positions and influences risk being accused of bias; this may result in the perceived value of their theoretical outcomes being reduced. Applying a reflexive process may mitigate this, enabling them to understand and refine their methodological processes and produce high-quality GT research.

Implications for practice All researchers should consider using reflexivity when conducting research. Understanding influences and positionality in qualitative methodologies allows for transparency and improves the rigour of their outcomes.