The Effect of Workforce Diversity on Employee Performance: The Case of Wallaga University

https://doi.org/10.56741/IISTR.apsa.002030

Authors

Keywords:

Education Diversity, Employee Performance, Ethnicity Diversity, Wallaga University, Workforce Diversity

Abstract

This study investigates the impact of workforce diversity on employee performance at Wallaga University, Ethiopia. Utilizing a descriptive and explanatory research design, the study analyzed four primary dimensions of diversity: ethnicity, gender, education, and age. Quantitative data were gathered from 179 administrative staff members (representing a 93.7% response rate) through structured Likert-scale questionnaires. Data analysis was conducted using SPSS version 24, employing both descriptive statistics and inferential methods, including Pearson correlation and multiple regression. The findings demonstrate that ethnicity, educational background, and age diversity have a statistically significant positive effect on employee performance. Specifically, educational diversity emerged as the strongest predictor of performance (β= 0.422, p < 0.001). While gender diversity showed a positive relationship, its effect was not statistically significant in this specific context (p = 0.636). The regression model explained 68.4% of the variance in employee performance. The study concludes that institutionalizing diversity management is essential for enhancing productivity and recommends that Wallaga University leadership integrate diversity-conscious policies into their strategic human resource frameworks.

Author Biographies

Gudata Abara Chali, Wallaga University

is a researcher and assistant professor affiliated with the Department of Management at Wallaga University in Nekemte, Oromia, Ethiopia. He focuses his work on management topics with a particular emphasis on leadership styles and their impact on employee performance within Ethiopia’s public sector. Based in Nekemte, he communicates research findings and collaborates with colleagues to advance understanding of how transformational leadership influences organizational outcomes in public institutions. (email: gudataa@gmail.com).

Lema Adeba, Wollega University

is a professional academic and lecturer currently serving in the Department of Accounting and Finance at Wollega University, located in Nekemte, Oromia, Ethiopia. Within the university's College of Business and Economics, he is recognized for his contributions to the instruction of undergraduate and graduate students in financial disciplines. His academic work is centered on the Oromia region, where he supports the university’s mission of providing quality education and community-based research. (email: lemmaadeba5@gmail.com).

References

H. Ahmed and N. Popova, “Globalization and its socioeconomic consequences: A comprehensive review,” The Critical Review of Social Sciences Studies, vol. 1, no. 2, pp. 87–97, 2023.

T. Cox, Cultural Diversity in Organizations: Theory, Research, and Practice. San Francisco, CA, USA: Berrett-Koehler, 1993.

H. N. D. Senyapar, “Interdisciplinary collaboration in social work management: Models, barriers, and strategies for integrated sustainable service delivery,” Technium Social Sciences Journal, vol. 76, p. 186, 2025. DOI: https://doi.org/10.47577/tssj.v76i1.13210

M. M. Ngalo, C. Ogohi, and U. A. Ibrahim, “Workplace diversity and employee performance: An empirical analysis of Nigeria’s banking sector,” Journal of Human Resource and Sustainability Studies, vol. 11, no. 1, pp. 211–233, 2023. DOI: https://doi.org/10.4236/jhrss.2023.111014

L. Atkinson, H. Alibašić, and E. Oduro Nyarko, “Diversity management in the public sector for sustainable, inclusive organizations: Ideals and practices in Northwest Florida,” Public Integrity, vol. 24, no. 4–5, pp. 400–413, 2022. DOI: https://doi.org/10.1080/10999922.2022.2034339

K. Y. Williams and C. A. O’Reilly, “Demography and diversity in organizations: A review of 40 years of research,” Research in Organizational Behavior, vol. 20, pp. 77–140, 1998.

Q. M. Roberson, “Diversity in the workplace: A review, synthesis, and future research agenda,” Annual Review of Organizational Psychology and Organizational Behavior, vol. 6, pp. 69–88, 2019, doi: 10.1146/annurev-orgpsych-012218-015243. DOI: https://doi.org/10.1146/annurev-orgpsych-012218-015243

M. I. Hossain, “Managing diversity through human resource management: A USA perspective and conceptual framework,” Archives of Business Research, vol. 11, no. 8, pp. 292–306, 2023. DOI: https://doi.org/10.14738/abr.118.15417

S. Macqueen, E. Southgate, and J. Scevak, “Supporting students from equity groups: Experiences of staff and considerations for institutions,” Studies in Higher Education, vol. 48, no. 2, pp. 356–367, 2023. DOI: https://doi.org/10.1080/03075079.2022.2137124

A. X. Huang, J. M. Chen, and J. Degner, “Being one or the other, both or neither: Self-categorization theory, social identity theory and the issue of mixed identities,” European Journal of Social Psychology, vol. 55, no. 4, pp. 727–743, 2025. DOI: https://doi.org/10.1002/ejsp.3155

J. Barney, “Firm resources and sustained competitive advantage,” Journal of Management, vol. 17, no. 1, pp. 99–120, 1991, doi: 10.1177/014920639101700108. DOI: https://doi.org/10.1177/014920639101700108

P. S. Aithal and A. K. Maiya, “Development of a new conceptual model for improvement of the quality services of higher education institutions in academic, administrative, and research areas,” International Journal of Management, Technology, and Social Sciences, vol. 8, no. 4, pp. 260–308, 2023. DOI: https://doi.org/10.47992/IJMTS.2581.6012.0322

T. Cox and S. Blake, “Managing cultural diversity: Implications for organizational competitiveness,” Academy of Management Executive, vol. 5, no. 3, pp. 45–56, 1991, doi: 10.5465/ame.1991.4274465. DOI: https://doi.org/10.5465/ame.1991.4274465

A. Loorbach and J. Wittmayer, “Transforming universities: Mobilizing research and education for sustainability transitions at Erasmus University Rotterdam, The Netherlands,” Sustainability Science, vol. 19, no. 1, pp. 19–33, 2024. DOI: https://doi.org/10.1007/s11625-023-01335-y

Z. Zhao and J. Ren, “Diverse and inclusive human resource practices and employee creativity: The psychological fit mechanisms and the role of inclusive leadership,” Frontiers in Psychology, vol. 16, p. 1679943, 2025. DOI: https://doi.org/10.3389/fpsyg.2025.1679943

R. Vivek, “Enhancing diversity and reducing bias in recruitment through AI: A review of strategies and challenges,” Informatics. Economics. Management, vol. 2, no. 4, pp. 101–118, 2023. DOI: https://doi.org/10.47813/2782-5280-2023-2-4-0101-0118

K. E. Dugan, E. A. Mosyjowski, S. R. Daly, and L. R. Lattuca, “Leveraging a comprehensive systems thinking framework to analyze engineer complex problem-solving approaches,” Journal of Engineering Education, vol. 113, no. 1, pp. 53–74, 2024. DOI: https://doi.org/10.1002/jee.20565

A. K. Isabirye and K. C. Moloi, “Beyond the boundaries: Interdisciplinary collaboration as the engine of innovation and impact at the faculty level,” Journal of Ecohumanism, vol. 4, no. 4, pp. 2155–2168, 2025. DOI: https://doi.org/10.62754/joe.v4i4.6981

C. L. Ridgeway and H. R. Markus, “The significance of status: What it is and how it shapes inequality,” RSF: The Russell Sage Foundation Journal of the Social Sciences, vol. 8, no. 7, pp. 1–25, 2022. DOI: https://doi.org/10.7758/RSF.2022.8.7.01

K. A. Jehn, G. B. Northcraft, and M. A. Neale, “Why differences make a difference: A field study of diversity, conflict, and performance in workgroups,” Administrative Science Quarterly, vol. 44, no. 4, pp. 741–763, 1999, doi: 10.2307/2667054. DOI: https://doi.org/10.2307/2667054

S. K. Alemu, “The meaning, idea and history of university/higher education in Africa: A brief literature review,” Forum for International Research in Education, vol. 4, no. 3, pp. 210–227, 2018. DOI: https://doi.org/10.32865/fire20184312

S. K. Horwitz and I. B. Horwitz, “The effects of team diversity on team outcomes: A meta-analytic review of team demography,” Journal of Management, vol. 33, no. 6, pp. 987–1015, 2007, doi: 10.1177/0149206307308587. DOI: https://doi.org/10.1177/0149206307308587

J. M. Madera, M. Dawson, and J. A. Neal, “Managing diversity in organizations: A review and synthesis of the literature,” Journal of Management, vol. 42, no. 2, pp. 498–528, 2016, doi: 10.1177/0149206315599325.

Kunze, S. A. Boehm, and H. Bruch, “Age diversity, age discrimination climate and performance consequences—A cross organizational study,” Journal of Organizational Behavior, vol. 32, no. 2, pp. 264–290, 2011, doi: 10.1002/job.698. DOI: https://doi.org/10.1002/job.698

T. W. H. Ng and D. C. Feldman, “Age and innovation-related behavior: The joint moderating effects of supervisor undermining and proactive personality,” Journal of Organizational Behavior, vol. 34, no. 5, pp. 583–606, 2013, doi: 10.1002/job.1802. DOI: https://doi.org/10.1002/job.1802

R. J. Ely and D. A. Thomas, “Cultural diversity at work: The effects of diversity perspectives on work group processes and outcomes,” Administrative Science Quarterly, vol. 46, no. 2, pp. 229–273, 2001, doi: 10.2307/2667087. DOI: https://doi.org/10.2307/2667087

M. Ali, C. T. Kulik, and I. Metz, “The gender diversity–performance relationship in services and manufacturing organizations,” The International Journal of Human Resource Management, vol. 28, no. 10, pp. 1464–1485, 2017, doi: 10.1080/09585192.2015.1115359. DOI: https://doi.org/10.1080/09585192.2011.561961

J. F. Hair, W. C. Black, B. J. Babin, and R. E. Anderson, Multivariate Data Analysis, 8th ed. Boston, MA, USA: Cengage Learning, 2019.

Published

2026-03-16

How to Cite

Chali, G. A., & Adeba, L. (2026). The Effect of Workforce Diversity on Employee Performance: The Case of Wallaga University. Advances in Psychological Sciences and Applications, 2(01), 1–9. https://doi.org/10.56741/IISTR.apsa.002030