Knowing the factors that influence internal audit effectiveness is important, because effective internal audit can lead to the improvement of four important processes in the rganization: learning (educating staff how to do their work better), motivation (auditing also leads to improvement of performance), deterrence (knowing that an audit is discourage any things that can lead to abuse), and process improvements (internal audit also ensure that the right things are done in the right way) (Eden & Moriah,1996). However, the impact that internal auditors have on the achievement of the established objectives (their effectiveness) are influenced by the auditor competency as well as the extent to which management consideration over the internal auditors’ work as valuable and decide to exploit it (Arena & Azzone, 2010 ), in the same context, Aguolu (2009) is of the view that the internal audit profession should form an internal audit group that will be appr opriate and effective in achieving organization established objective over and above the need for reliability and accuracy of the records or ensuring compliance with relevant procedures. As such, effective internal audit system also helps to achieve performance and profitability and prevents in loss of revenues particularly in public sectors (Vijayakumar & Nagaraja, 2012) even though Pilcher Gilchrist and Singh (2011) observed that efficiency and effectiveness of audit in a public sectors context is more complex than in the private sectors.
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