Internal audit quality: perceptions of Tunisian internal auditors an explanatory research

The purpose of this study is to understand how internal auditors perceive the internal audit quality and to highlight the different profiles of internal auditors based on their perception of internal audit quality determinants.

The authors’ methodological approach is based on the submission of a self-administered questionnaire. The final sample consists of 104 internal auditors. The first stage of the study is in the lead of a certified public accountants (CPA), which highlights seven factors of the internal audit quality. The second step is a confirmatory factor analysis (CFA) that allowed the authors to validate the model proposed by the CPA. Finally, the authors carry out a typological analysis of the auditors according to their way of perceiving the factors extracted by the CPA.

The authors’ model, validated by the CFA, shows that the knowledge of the internal auditor, the independence of reporting, compliance with professional standards of internal audit, the relationship with the external auditor, the personal relationship of the internal auditor, the access to information and the field of intervention of the internal auditor have a positive association with the internal audit quality but with a different degree of significance. For example, the field of intervention of the internal auditor and the access to information explain better the internal audit quality. However, the knowledge of the internal auditor and the relationship with the external auditor are not significant to explain the internal audit quality. From the hierarchical cluster analysis, four groups of internal auditors emerged: the autonomous, the perfectionists, the rigorous ones and the objectives.

In offering these findings, the paper contributes to the existing internal audit literature by introducing evidence from an emerging country, namely, Tunisia, of the internal audit quality model. In addition, the authors proposed a new measure to the internal audit quality model which is the use of the work of the internal auditor by the external auditor. This study is also interesting to managers and professional internal audit organizations in recognizing the characteristics of the quality of the internal audit and advance reflections on the effectiveness of internal audit practices. The authors’ study proposes a typology of certified internal auditors through their perceptions of the quality of the internal audit while taking into account the specificities of the Tunisian audit market. This provides insights to managers and audit committees on the measures necessary to ensure the relevance of the internal audit work within their companies.