An essential condition for the survival of a manufacturing industry or more generally of an organization lies on the ability of its members to act reliably and efficiently to achieve the objectives of the industry. The substantial coordination of behavior can be achieved in numerous ways. Supervision of managers and staffs of manufacturing industry is becoming ineffective. However it may be wished to maintain these ways of controlling but it would only be applied to the part of the industry (Brown, 1999). Therefore it is necessary that management put in place mechanisms to fill the gap in supervision. The financial and corporate goal attainment of a manufacturing industry is underpinned by effective internal systems in which the practices of the internal audit has an important role, raising the reliability of the internal control system which is always aimed at improving the process of risk management, and, above all, satisfying the needs of internal users (Fama, 2008). The effective practice of internal audit also supports and enhances the system of responsibility that the executive directors and employees of manufacturing industry have towards the owners and other stakeholders.
The Internal Audit Department provides a reliable, objective, and impartial service to the management, board of directors, and audit committee, while stakeholders are interested in return on investments, sustainable growth, strong leadership, and reliable reporting on the financial performance and business practices of a manufacturing industry. Proper understanding of the role and importance of the internal audit is one of the preconditions for successful strategy implementation and attainment of corporate goals of a manufacturing industry. However, this research aims to examine the effect of internal audit practice on corporate goal attainment of some selected manufacturing firms in Port Harcourt, Rivers State.

Corporate goal attainment by manufacturing industries is a major concern these days due to importance of the global competition. One factor of this corporate goal attainment lies on the ethical and responsible behavior of its managers and employees. But at the end of the 20th century, the Enron and WorldCom scandals show that there was a lack of control in companies (Bertin, 2007). Following these financial scandals, actions were taken. It has become essential to provide an ethical control in the interest of leading to better take into account the content of internal control practice, in order to overcome the weaknesses of economic and legal support. In a common interest, ways to measure the impact of moral decisions have been found and the manufacturing industry must be able to justify its activities (Ethical norms and values), and this control may be performed by the internal audit (Mercier 2000). Corporate goal attainment of manufacturing industry can also be “the ability of an organization to identify and implement appropriate strategies within the framework of the aims it pursues in other maintains good reputation” (Bouquin, 1997). The corporate goal are vary from one manufacturing industry to another for example a manufacturing company may want to become the largest industry in the world or to remain a successful specialized firm, or even be best able to achieve the goals it has set. Once the purposes have been defined, success in the attainment of these corporate goals depends on the ability to define appropriate strategies and to implement them.

Firm arrangements must ensure the level of transparency and accountability in both economic and strategic scopes and we call internal control the combination of such devices. It is necessary to periodically test the effectiveness and suitability of a particular aspect of internal control mostly importantly the mode of practice. Auditing is the process of studying and evaluating internal control and certain of its aspects, as well as its expected outcome. The ensuing result may help to determine the effectiveness of the industry. It is something important because the challenges of every work day are for the manufacturing industries to be competitive so as not to be forced out of the market.


Internal audit practice involves the evaluation function available to a firm to examine and appreciate the proper functioning, consistency and effectiveness of its internal control. To this end, internal auditors should review the various activities of the industry, measure the risks and the arrangements put in place to control them, ensure performance in carrying out assigned responsibilities and make recommendations to improve its security and increase efficiency (IFACI, 1998). Internal audit practice is one of the essential mechanisms of the internal control system. No manufacturing industry can disregard it, even partially, without losing at the same time control of a key to its survival. A vital member of firm management, the internal auditor is a party to an audit charter defining his independence. When the internal audit department does not meet the expectations of senior management, it should take adequate steps to upgrade it (IFACI, 1998). In any event, the firm must maintain control of the implementation process of internal audits. As manufacturing industry is pursuing objectives in an economic environment, the firm is the meeting place of a wide range of stakeholders interested in its success. This complex situation has prompted the researcher to seek to understand more precisely the contribution of internal audit practice in attainment of corporate goals.


The following are the objectives of this study:
1. To examine the effectiveness of the internal audit in selected manufacturing firms in Rivers state.
2. To ascertain the relationship between internal audit practice and corporate goal attainment in the manufacturing industry.
3. To determine the factors militating against corporate goal attainment in manufacturing companies.


1. What is the effectiveness of the internal audit in selected manufacturing firms in Rivers state?
2. What is the relationship between internal audit practice and corporate goal attainment in the manufacturing industry?
3. What are the factors militating against corporate goal attainment in manufacturing companies?


HO: There is no significant relationship between internal audit practice and corporate goal attainment in the selected manufacturing industry in River State
HA: There is significant relationship between internal audit practice and corporate goal attainment in the selected manufacturing industry in River State


Considering the importance of the internal audit practice towards the attainment of the corporate goal of the manufacturing industry, this study is coming at the right time as the outcome will educate the management and decision makers of manufacturing industry on how proper practice of internal audit can be used as a tool for the corporate goal attainment. This will also help in the realization of the industry’s long term objectives. This research will also serve as a resource base to other scholars and researchers interested in carrying out further research in this field subsequently, if applied will go to an extent to provide new explanation to the topic.


This study will cover the activities of the internal audit department in the selected manufacturing industries in Port Harcourt, River State with a view of ascertaining the effectiveness of the internal control mechanism


1.   Financial constraint– Insufficient fund tends to impede the efficiency of the researcher in sourcing for the relevant materials, literature or information and in the process of data collection (internet, questionnaire and interview).
2.   Time constraint– The researcher will simultaneously engage in this study with other academic work. This consequently will cut down on the time devoted for the research work.
3.   Due to confidential reasons we did not received the manufacturing industries internal audit reports on time.
4.  The internal audit departments of the selected manufacturing industries were small in size and therefore various types of interviews were not collected.

1.9   Definition of Terms

Corporate goal: are statements that outline an overall company vision that includes an operating philosophy and specific objectives
Audit: an official inspection of an individual’s or organization’s accounts, typically by an independent body
Ethics: moral principles that govern a person’s or group’s or industry’s behavior.
Accountability: The obligation of an individual or organization to account for its activities, accept responsibility for them, and to disclose the results in a transparent manner.


Bertin. (2007),” “Managing change and size risks”, Internal Auditor, Vol. 56 No. 6, pp. 68-9.
Bouquin H. (1997). – The European literature review on internal auditing” Managerial Auditing Journal, Vol.21 pp. 845 – 853
Brown, R.G. (1999). Changing Audit Objectives and Techniques. The Evolution of Audit Thought and Practice. T.A. Lee. New York, Garland Publishing, Inc. 1999.
Fama, E.F. (2008), “Agency problems and the theory of the firm”, Journal of Political Economy, April, pp. 288-307.
IFACI (institut français de l’audit et du contrôle interne), (1998). « L’audit interne vers une collaboration renforcée avec ses collaborateurs externes ».
Mercier S (2000). ” Capital: A Critique of Political Economy, Volume 2, D. Fernbach (trans.), Penguin Classics, London, (originally published in 1999