Evaluation of the Nexus Between Internal Audit Operations, Management Efficiency and Accountability of Tertiary Institutions in South East Nigeria.

Abstract:

This study examined the relationship between internal audit processes, management efficiency, and accountability in public tertiary institutions across South-East Nigeria. Guided by institutional and agency theories, it empirically assessed how internal control mechanisms, audit investigation and compliance, and asset–liability verification affect managerial and accountability outcomes within universities, polytechnics, and colleges of education. A quantitative, cross-sectional survey design was adopted, targeting internal auditors, senior management, finance officers, and accounting lecturers. Using a multi-stage sampling approach, 310 valid responses were obtained from 400 distributed questionnaires across Abia, Anambra, Ebonyi, Enugu, and Imo States. Structural equation modeling (SEM) tested the measurement and structural models, with reliability and validity indices meeting international benchmarks (Cronbach’s alpha and composite reliability > 0.70; AVE > 0.50). Model fit indices (RMSEA = 0.053, SRMR = 0.076, CFI = 0.99, TLI = 0.99) confirmed strong model adequacy. Results showed that audit investigation and compliance significantly influenced both management efficiency (β = 0.38, p < 0.10) and accountability (β = 0.73, p < 0.001), while asset–liability verification affected management efficiency (β = 0.39, p < 0.05) but not accountability. Internal control exhibited non-significant relationships with both outcomes, indicating that existing systems are compliance-oriented rather than performance-driven. The study concludes that internal audit effectiveness depends on strategic integration into institutional performance frameworks. It recommends shifting toward performance-based audits, technology-driven compliance, and transparent disclosure of audit outcomes to strengthen accountability culture and enhance managerial efficiency in Nigeria’s tertiary education sector.