Immigrant Workers’ Language Proficiency and Cultural Identity Congruence and Work–Family Conflict: The Mediating Role of Interpersonal Conflict at Work

To facilitate a much greater understanding of work–family conflict (WFC) in the cross-cultural context, work–family research begins to investigate the critical role of acculturation in WFC. The purpose of this study is to expand understanding of the role of acculturation in a more nuanced way by investigating how two important facets of acculturation (i.e., language proficiency and cultural identity), jointly influence WFC among immigrant workers. We conducted a polynomial regression with response surface analysis using two-wave longitudinal data from Chinese immigrants in New Zealand ( N = 264). The results showed that the congruence of language proficiency and cultural identity led to lower levels of interpersonal conflict at work (ICW). However, the congruence between them at high levels did not lead to lower levels of ICW compared to congruence at low levels. In addition, ICW fully mediated the combined effects of immigrant workers’ language proficiency and cultural identity on their WFC. Our results suggest that benefits are associated with language proficiency and cultural identity congruence and the findings provide insight into the role of acculturation in WFC.