Download PDF
Author
EMILY UFULUL DABOER
08037084769
ABSTRACT
The study investigated the impact of workplace diversity on organizational performance within Nigerian public institutions, particularly in revenue-generating agencies such as the Plateau State Internal Revenue Service (PSIRS). Although workplace diversity had been widely studied in private and multinational contexts, its specific impact on public sector agencies in Nigeria remained largely underexplored. The research aimed to bridge this knowledge gap by examining the role of gender, ethnic, age, educational, and religious diversity on PSIRS’s revenue collection efficiency. Workplace Diversity and Organizational Performance: A Study of Plateau State Internal Revenue Service (PSIRS) served as the topic of the investigation. Primary data were collected using structured questionnaires administered electronically via internal platforms and were supplemented with interviews and organizational records. The main instrument was a Likert-scale questionnaire. Data were analyzed using descriptive statistics, Pearson’s correlation analysis, multiple regression models, and diagnostic tests such as multicollinearity and normality tests, using SPSS version 26.0. The results showed that gender diversity, age diversity, and educational diversity had positive and significant impacts on revenue performance at PSIRS. Ethnic diversity had a positive but statistically insignificant influence, while religious diversity had a negative and significant effect on revenue performance. Specifically, a 1% increase in gender, age, and educational diversity improved revenue performance by 32.3%, 37.7%, and 36.2% respectively, whereas a 1% rise in religious diversity reduced performance by 15.2%. The study revealed that workplace diversity, when properly managed, enhanced organizational performance, particularly through the contributions of gender, age, and educational diversity. However, poorly managed religious diversity led to organizational inefficiencies. The study emphasized the importance of structured diversity management strategies within public institutions to optimize workforce productivity and improve revenue generation. It was recommended that PSIRS adopt structured diversity management policies, promote gender diversity, encourage collaboration across age groups, align educational qualifications with job roles, and develop effective strategies to manage religious diversity in order to enhance organizational performance and revenue efficiency.
Keywords: Workplace diversity, Organizational performance, Revenue efficiency, public sector, Plateau State, PSIRS.
REFERENCES
Abdulsalam, R., Martinez, L., & Osei-Bonsu, K. (2025). Enduring disparities in the workplace: A pilot study in the AI community. International Journal of Workplace Equity, 9(2), 78–94.
Adegbite, R., & Ogunyemi, O. (2023). Workplace diversity and organizational efficiency: A case study of Nigerian tax agencies. Journal of Public Administration and Policy Research, 15(2), 87–103.
Adu-Gyamfi, S., Mensah, R., & Boateng, K. (2022). Inclusive leadership and organizational performance in African contexts. African Journal of Business Management, 16(4), 112–125.
Aliyu, T. A., & Abubakar, H. S. (2024). Diversity in the workplace: Implications for collective organizational commitment in Nigerian public sector organizations. International Journal of Professional Business Review, 9(4), 1–26.
Alshemmari, A., & Al Monawer, A. (2024). Analyzing the relationship between workplace diversity and innovation and its influence on organizational performance. International Journal of Business Innovation, 18(1), 45–67.
Bray, T. M., Norwood, M. G., & Griffith, L. J. (2021). The link between organizational diversity and financial performance: Evidence from global corporations. Journal of Organizational Behavior, 38(4), 521–536.
Cochran, W. G. (1977). Sampling techniques (3rd ed.). Wiley.
Corporate Service Directorate, Plateau State Internal Revenue Service, Jos. (2025).
Ekejiuba, U., Muritala, T., Maitala, F., & Nwoye, M. (2023). Effect of workplace diversity management on employee commitment in the Nigerian public sector: A conceptual review. Journal of Human Resource and Sustainability Studies, 11(3), 441–449.
Ely, R. J., & Thomas, D. A. (2022). Cultural diversity at work: The effects of diversity perspectives on work group processes and outcomes. Administrative Science Quarterly, 46(2), 229–273.
Hassan, A., & Ibrahim, S. (2023). Religious diversity and organizational harmony: A study of revenue collection agencies in Northern Nigeria. Journal of Public Sector Studies, 11(3), 189–204.
Ibekwe, O., Adeyemi, T., & Yusuf, M. (2024). Gender diversity and organizational performance: Evidence from Nigerian public institutions. African Journal of Business and Management Research, 21(1), 54–70.
Ishola, A., & Olufemi, T. (2025). Influence of organisational culture on diversity and inclusion management in selected tertiary institutions in Ogun State, Nigeria. Journal of Diversity and Organizational Studies, 13(1), 45–62.
Johnson, E. K., Yates, R. H., & Collett, M. T. (2022). The influence of workplace diversity on organizational performance: A longitudinal study. Emerald Insight, 21(1), 105–119.
Johnson, F. T., Lal, C. V., & Thomas, S. E. K. (2022). Diversity and organizational performance: What do we know and what do we need to know? Journal of Business and Management Research, 56(3), 234–256.
Khassawneh, M., & Mohammad, S. (2025). Workplace diversity and organizational effectiveness: Empirical insight from telecom enterprise. African Journal of Business and Management Research, 11(3), 101–119.
Kim, H., & Park, J. (2022). Diversity management strategies and their effect on employee engagement: A cross-country analysis. International Journal of Human Resource Management, 39(4), 215–239.
Martin, J. S., & White, L. K. (2023). Managing diversity and inclusion: Global best practices and links to organizational performance. Journal of Management Development, 42(2), 179–196.
McKinsey & Company. (2023). Diversity wins: How inclusion matters.
Mensah, K., & Boateng, R. (2023). Ethnic diversity and workplace conflicts: A study of revenue collection agencies in Ghana. Journal of African Business and Economics, 16(3), 98–115.
Okechukwu, I., & Bassey, F. (2024). Educational diversity and workforce innovation: Examining its effects in Nigerian public sector institutions. Journal of Public Sector Management, 20(2), 55–78.
Okon, I. F., Akpan, N. U., & Edet, D. M. (2023). Workplace diversity and employee performance: Insights from the banking sector. International Journal of Organizational Analysis, 31(2), 312–331.
Pallant, J. (2005). SPSS survival manual: A step-by-step guide to data analysis using SPSS for Windows (2nd ed.). Open University Press.
Phipps, S. T. A., & Osiri, J. K. (2020). Linking workplace diversity to organizational performance: A conceptual framework. Journal of Diversity Management, 5(4), 13–22.
Ramalingam, M. T., Khan, A. J., & Singh, G. (2022). Workplace diversity and organizational performance in the digital age. SpringerLink, 14(2), 142–157.
Smith, C. R., Zahid, M., & Gibson, G. M. (2023). Comparative analysis of workplace diversity and performance in multinational corporations. Journal of Business Research and Management, 18(2), 98–115.
Taylor Cox (1993) — Cultural Diversity in Organizations: Theory, Research & Practice.
Wilson, C. R., Ellis, K. D., & Peterson, G. M. (2021a). Diversity, inclusion, and organizational performance: An empirical study of Fortune 500 companies. Journal of Diversity Management, 16(2), 72–90.
Wilson, C. R., Ellis, K. D., & Peterson, G. M. (2021b). Organizational diversity and inclusion: Linking diversity to enhanced employee engagement. Human Resource Development Review, 30(1), 67–89.
Yamane, T. (1967). Statistics: An introductory analysis (2nd ed.). Harper and Row.
Zhang, W., & Liu, J. (2022). The relationship between age diversity and organizational performance: A case of Chinese public service organizations. Journal of Public Administration Research, 18(3), 120–138.