Nurses with higher cultural competence don’t always perform better – new study

The ability to function effectively in intercultural settings has been termed “cultural intelligence” – and it is often celebrated as a kind of modern superpower.

But our latest research reveals a more complicated reality.

Previous research has largely highlighted the bright side of cultural intelligence, linking it to positive workplace outcomes such as improved performance.

But we found another side, and evidence of this in one of the most critical settings: healthcare.

We collected data from nurses working in New Zealand, a highly diverse country where nurses have to interact daily with patients, families and colleagues from a wide range of cultural backgrounds.

This diversity has grown even further after the COVID pandemic, with many internationally qualified nurses joining the workforce from around the world.

Cultural intelligence therefore seems essential. We expected it would help them perform better and feel more satisfied at work. But that is not what we found – which may have implications for the way cultural intelligence is taught.

What cultural intelligence means

Cultural intelligence consists of four dimensions.

Meta‑cognitive cultural intelligence refers to the mental processes we use to acquire and understand cultural knowledge. This is about being aware of our own thinking processes related to culture, questioning cultural assumptions and adapting our thinking patterns.

Cognitive cultural intelligence refers to knowledge of the norms, practices and conventions of different cultures. It involves knowing the similarities and differences between cultures.

Motivational cultural intelligence refers to the capability and willingness to learn about and function in culturally diverse situations.

Behavioural cultural intelligence refers to the capability to demonstrate appropriate verbal and non‑verbal actions when interacting with people from different cultural backgrounds.

When cultural knowledge backfires

Previous research has generally focused on cultural intelligence as a single construct and has shown positive associations with performance outcomes.

However, we found results are not consistent across the individual components of cultural intelligence.

Surprisingly, we found nurses with higher levels of cultural knowledge (cognitive cultural intelligence) actually performed worse and reported lower job satisfaction.

In other words, knowing more about cultural differences does not automatically translate to better care and may even get in the way.

We believe this suggests too much knowledge can backfire. Cultural knowledge may create cognitive overload, where nurses are overwhelmed by too much information.

It may also lead to cognitive entrenchment, where deep expertise fosters rigid thinking, making it harder to adapt to the unique needs of each patient.

This matters because healthcare workers often attend cultural knowledge training. In these training sessions, they are taught about cultural norms, values and differences in the belief that more knowledge will lead to better care. Our findings suggest this may not always be the case.

Why thinking about thinking matters

We also found evidence for the bright side of cultural intelligence.

Nurses who are more aware of and adapt their own thinking processes related to culture (meta‑cognitive cultural intelligence) performed better and reported higher job satisfaction.

We believe these nurses are better at understanding and interpreting cultural nuances, leading to fewer misunderstandings as they adjust their assumptions during patient interactions.

This likely contributes to improved job performance, as nurses can navigate cultural differences more effectively and provide culturally sensitive and appropriate care.

We also found motivational and behavioural cultural intelligence did not have a significant effect on job performance or job satisfaction.

This may be due to the specific nature of nursing work. Nurses often operate in environments with clearly defined roles and responsibilities, where core tasks are highly structured. This may reduce the need for high levels of intrinsic motivation or flexible behaviour to perform effectively.

Taken together, our findings challenge the idea that more cultural knowledge is always better. Deeper understanding of cultural norms, values and differences does not always lead to better care.

Instead, in high‑stakes intercultural work environments such as healthcare, cultural competence training needs to move beyond facts about other cultures.

Cultural competence is not merely about acquiring knowledge but about developing the reflective and adaptive capabilities necessary to navigate complex, culturally diverse environments.

In healthcare, that distinction matters more than we think.