| Organizational progress and survival are much dependent on the performance of employees.However,many important factors combine to produce a better performance.Cognizance to that,this study was constituted to investigate relationship between organizational commitment and employee performance,and the role of organizational citizenship behavior and work engagement in the relationship in the Nigerian Banking Sector.The study used a quantitative approach and a simple random sampling technique.The study population was made up of six(6)banks in Abuja State,Nigeria namely;Guarantee Trust Bank Plc,Stanbic IBTC Bank Plc,Fidelity Bank Plc,Zenith Bank Plc,Standard Chartered Bank Nigeria,and Ecobank Nigeria Plc.A self-administered questionnaire was used to gather responses,the administration,and data collection spanning eleven(11)weeks.482 questionnaires were distributed,and a completed 450 were taken as the sample size for the study.The Statistical Package for Social Sciences was used to process the data.The descriptive,Pearson Correlation,Multiple Regression,Mediated Multiple Regression,and the Moderated Multiple Regression Analysis were used to test the research hypotheses.Firstly,the outcome showed that,affective,continuance,and normative commitment have a positive correlation and significant impact on employee performance with r= 0.473,(B=0.160,p<0.05),r= 0.485(B=0.168,p<0.05),and r=0.485(B=0.201,p<0.05)respectively.Secondly,organizational citizenship behavior mediated the relationship between affective,continuance and normative commitment and employee performance with z-value = 3.952(p<0.05),z-value = 4.925(p<0.05)and z-value = 12.022(p<0.05)respectively after a Sobel Test has been undertaken.Work engagement moderated the association between organizational citizenship behavior and employee performance with the interaction term B=0.129(t=5.104,p<0.05).The results suggest that more effort by the banks in the Nigerian Banking Sector specifically among banks in Abuja State should be channeled towards creating committed employees,engaged employees,and promoting organizational citizenship behavior to maximize employee performance.Moreover,the outcome contributes to the Social Exchange Theory(SET)and the Side-Bet Theory such that organizations could employ policies that enhances organizational commitment,work engagement,and citizenship behavior. |