The Impact of Organizational and Professional Factors on Internal Audit Effectiveness: An Empirical Study of Libya Post Company

Abstract

This study empirically investigates the factors influencing the effectiveness of the Internal Audit Function (IAF) in the Libya Post Company, as perceived by its internal auditors. The research focuses on four key independent variables: Internal Auditor Independence, Internal Auditor Competence and Experience, Senior Management Support, and Cooperation between Internal and External Auditors. Internal Audit Effectiveness serves as the dependent variable. Employing a descriptive analytical methodology, data was collected via a survey questionnaire from internal auditors within the company.The results indicate that cooperation between internal and external auditors had the most significant positive impact on enhancing IAF effectiveness (Beta = 0.492, p=0.002), followed by competence and professional experience (Beta = 0.356, p=0.030), and senior management support (Beta = 0.299, p=0.031). Internal auditor independence was positively correlated (r=0.421) but did not show a statistically significant direct impact in the full regression model (Beta = 0.188, p=0.267). The study recommends formalizing cooperation, enhancing competence through training, and strengthening practical management support.