The Effect of Workforce Diversity on Employees Job Performance in Case of Woldia University

Technical Summary: The Effect of Workforce Diversity on Employees' Job Performance in Case of Woldia University

Problem Statement
This study addresses the impact of workforce diversity on employee job performance within the context of Woldia University, a higher education institution in Ethiopia. The research is motivated by the observation that while organizations globally are becoming heterogeneous due to globalization, the specific dynamics of diversity in Ethiopia present unique challenges. The author notes that in the Ethiopian context, particularly within higher education, ethnic diversity has become a source of significant friction, leading to employee turnover due to insults, intimidation, and safety concerns. Despite extensive literature on workforce diversity in countries like India, Pakistan, Nigeria, China, and Kenya, there is a noted geographical gap in research regarding Ethiopia. Consequently, this study aims to empirically examine how specific dimensions of diversity—age, gender, education, ethnicity, and experience—affect the job performance of academic staff at Woldia University.

Methodology
The research employs an explanatory research design with a quantitative approach to investigate the cause-and-effect relationship between workforce diversity and employee performance.

• Population and Sampling: The target population consists of 838 active academic staff members at the main campus of Woldia University. Using the Yamane formula with a 5% margin of error, a sample size of 271 respondents was determined.
• Sampling Technique: A proportional stratified sampling technique was utilized to select respondents from the university's eight faculties, ensuring representation based on the faculty size.
• Data Collection: Primary data was collected using a structured questionnaire with a Likert scale, partially adapted from previous studies (Kipsang and Kagwe, 2022; Muange and Willy Kiptoo, 2020).
• Data Analysis: The study utilized SPSS Version 20 for data processing. A multiple linear regression model was applied to quantify the relationship between the five independent variables (age diversity, gender diversity, education diversity, ethnic diversity, and experience diversity) and the dependent variable (employee job performance).

Key Contributions and Findings
The study contributes to the literature by providing empirical evidence from the Ethiopian higher education sector, a context previously under-researched regarding this specific topic. The analysis of 258 valid responses (95.2% return rate) yielded the following results:

• Model Fit: The regression model (R² = 0.278) indicates that the identified diversity variables explain 27.8% of the variance in employee job performance, with the model being statistically significant (p < 0.05).
• Positive Drivers: The analysis reveals that age diversity, gender diversity, and education diversity have a statistically significant positive effect on employee performance. Specifically, increases in these diversity dimensions correlate with increased performance levels.
• Negative/Non-Significant Drivers:
  • Ethnic Diversity: The study found that ethnic diversity has a negative impact on employee performance. However, in the hypothesis testing phase, the p-value for ethnic diversity was 0.073, leading the author to accept the null hypothesis that it does not have a statistically significant effect at the 0.05 level, despite the negative coefficient in the regression.
  • Experience Diversity: The study concludes that experience diversity has a negative impact on performance. The hypothesis testing accepted the null hypothesis for this variable as well, noting it is not significant at p < 0.05.

Significance and Claims
The paper claims that workforce diversity management is critical for organizational productivity and creativity. The author asserts that while diversity brings varied skills, attitudes, and methods, it requires active management to mitigate challenges, particularly regarding ethnic tensions which are exacerbated by the broader civil conflict in Ethiopia.

The study concludes that managers must accept the existence of diversity and manage it effectively to enhance productivity. It highlights that while age, gender, and educational differences contribute positively to performance, ethnic and experience diversities currently pose challenges in the specific context of Woldia University. The author suggests that future research should expand beyond extrinsic diversities (observable traits) to investigate intrinsic diversities (unobservable traits like values and beliefs) to provide a more comprehensive understanding of workforce dynamics.