International Journal of Sub-Saharan African Research (IJSSAR)

Background: Worker productivity in Nigerian research institutes is suboptimal, undermining national development goals. Despite interventions like the Consolidated Research and Allied Institutions Salary Structure, challenges persist due to ineffective human resource practices. Objectives: This study investigated the effect of performance appraisal, motivation, and leadership influence on workers’ productivity at the National Cereals Research Institute (NCRI) Badeggi Niger State and the National Institute for Freshwater Fisheries Research (NIFFR) New Bussa Niger State. Methods: A quantitative survey design was employed, sampling 405 employees from a population of 2,082 using stratified random sampling. Data were collected using a structured questionnaire and analysed using descriptive statistics, Spearman correlation, and multiple regression. Results: The study found significant positive relationships between the independent variables and productivity. Leadership influence had the strongest effect (? = 0.539), followed by performance appraisal (? = 0.335) and motivation (? = 0.273). The regression model explained 95.1% of the variance in productivity (RZ = 0.951). Ineffective appraisal systems and poor motivation were identified as key barriers. Conclusions: Performance appraisal, motivation, and leadership are critical drivers of productivity in research institutes. Management should implement transparent appraisal systems, improve welfare packages, and adopt transformational leadership styles to enhance institutional output. Unique Contributions: This Study proposes an evidence-based reform that can strengthen institutional performance and contribute to Nigeria’s broader goals in agriculture, aquaculture, and rural development and enhancing human resource practices which will not only improve staff morale and institutional output but also position these research institutes to better support national policy priorities. Key recommendation: Organizations should strengthen transparent performance appraisal with clear feedback and incentives to enhance motivation and productivity. They should also invest in leadership development and adopt an integrated HR strategy that combines appraisal, motivation, and leadership initiatives with regular evaluation for sustainable outcomes.