Internal Workplace Diversity and Organisational Performance of Selected Banks in Delta State

The study examined the effect of internal workplace diversity on the organisational performance of selected banks in Delta State, Nigeria. Specifically, the study investigated the influence of gender diversity, age diversity, and ethnic diversity on organisational performance. A total of 321 questionnaires were distributed across selected banks, out of which 311 were correctly retrieved and analysed. The study adopted a quantitative research design, and data were analysed using descriptive statistics, correlation, and multiple regression analysis. The findings revealed that gender diversity (β = 0.281, p < 0.01), age diversity (β = 0.257, p < 0.01), and ethnic diversity (β = 0.298, p < 0.01) all have significant positive effects on organisational performance. These results suggest that diverse workforces foster creativity, innovation, effective decision-making, and employee commitment, thereby enhancing overall productivity and performance in the banking sector. The study concluded that internal workplace diversity is a critical determinant of organisational success in today’s competitive and dynamic business environment. It recommended that banks should develop formal diversity management policies, organise regular diversity and inclusion training programmes, andpromote mentorship and cross-cultural collaboration to maximise the benefits of workplace diversity. The study contributes to knowledge by: (1) providing empirical evidence on the relationship between internal workplace diversity and organisational performance within the Nigerian banking context, and (2) demonstrating the relative impact of gender, age, and ethnic diversity on performance, offering insights for targeted diversity management strategies in similar institutional settings.