Volume 9, Issue 1 (Spring 2022)                   johe 2022, 9(1): 19-28 | Back to browse issues page

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Salehi Sahlabadi A, Asgari Gandomani E, Abbasi Balochkhaneh F, Mousavi Kordmiri S H. The Effect of Mental Workload on Job Performance with the Mediating Role of Job Stress. johe 2022; 9 (1) : 3
URL: http://johe.umsha.ac.ir/article-1-711-en.html
1- Department of Occupational Health Engineering and Work Safety, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2- Department of Occupational Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran , hojatmk66@yahoo.com
Abstract:   (2546 Views)
Background and Objective: Developing technology, increasing job competition, and employer demands for higher productivity increase job stress and workload which affect job performance. The present study aimed to investigate the effect of mental workload on job performance among offshore employees of a power plant with the mediating role of job stress.
Materials and Methods: This study is descriptive-analytical. A total of 97 workers of a power plant participated in the study in 2019. A job status questionnaire was designed, and its validity and reliability were estimated. The questionnaire included three sections of mental workload (8 questions), job performance (7 questions), and job stress (9 questions). Then the questionnaires were distributed to the case group (47 employees in electric power generation) and the control group (32 administrative staff). Finally, the relationship between mental workload, job performance, and job stress was investigated using the structural equation method by SPSS22 and AMOS24 software.
Results: According to the results of the Pearson correlation coefficient test, significant relationships were observed between the variables of workload-job stress, job stress-job performance, and workload-job performance (P<0.05). Job stress has a mediating role between workload and job performance with a mediation percentage of 0.415 due to the structural equation model; therefore, high workload results in high job stress which reduces job performance.
Conclusion: According to the findings of the present study, workload increases job stress among employees and reduces job performance
Article number: 3
Full-Text [PDF 883 kb]   (1384 Downloads)    
Type of Study: Research Article | Subject: Ergonomics

1. Kotteeswari M, Sharief ST. Job stress and its impact on employees performance a study with reference to employees working in Bpos. Int J Bus Adm Res Rev. 2014;2(4):18-25.
2. Abbas M, Raja U. Impact of psychological capital on innovative performance and job stress. Can J Adm Sci. 2015;32(2):128-38. DOI: 10.1002/cjas.1314 [DOI:10.1002/cjas.1314]
3. Omolayo BO, Omole OC. Influence of mental workload on job performance. Int J Human Soc Sci. 2013;3(15):238-46.
4. Ahmad R, Lee M-Y, Othman AEA, Shaminan AS, Heng C-S, Sumilan H, et al. The Impact of Workload on Job Performance among Doctors in Malaysian Public Hospitals. a Case Study. Int J Bus Soc. 2019;20(3):1276-93.
5. Bruggen A. An empirical investigation of the relationship between workload and performance. Manag Decis. 2015;53(10). [DOI:10.1108/MD-02-2015-0063]
6. Qadoos Zafar AA, Hameed T, Ilyas T, Younas HI. The influence of job stress on employees performance in Pakistan. Amer J Soc Sci Res. 2015;1(4):221-5.
7. Jalagat R. Determinants of job stress and its relationship on employee job performance. Amer J Manag Sci Eng. 2017;2(1):1-10. [DOI:10.11648/j.ajmse.20170201.11]
8. Akca M, Küçükoğlu MT. Relationships between mental workload, burnout, and job performance: a research among academicians. Evaluating Mental Workload for Improved Workplace Performance: IGI Global; 2020. p. 49-68. DOI: 10.4018/978-1-7998-1052-0.ch003 [DOI:10.4018/978-1-7998-1052-0.ch003]
9. Hoboubi N, Choobineh A, Ghanavati FK, Keshavarzi S, Hosseini AA. The impact of job stress and job satisfaction on workforce productivity in an Iranian petrochemical industry. Saf Health Work. 2017;8(1):67-71. [PMID: 28344843] DOI: 10.1016/j.shaw.2016.07.002 [DOI:10.1016/j.shaw.2016.07.002] [PMID] [PMCID]
10. Deng J, Guo Y, Ma T, Yang T, Tian X. How job stress influences job performance among Chinese healthcare workers: a cross-sectional study. Environ Health Prev Med. 2019;24(1):2. [PMID: 30611191] DOI: 10.1186/s12199-018-0758-4 [DOI:10.1186/s12199-018-0758-4] [PMID] [PMCID]
11. Vijayan M. Impact of job stress on employees job performance in Aavin, Coimbatore. J Organ Behav. 2017; 6(3):21.
12. Sadeghi M, Dadras A, Asadpour A. A study on the rate and causes of workers' burnout in satellite jobs (Case: Iranian Offshore Oil Company in Sirri Island). Human Re Manag Oil Ind. 2020;11(43):239-263.
13. Rafieyan K, Araban S, Romani S, Rahmani G, Mohseninezhad L, Khatmi A. Comparison of offshore and onshore employees' job stress of oil and gas company in western part of Iran. Occup Hyge Health Prom J. 2018;2(2):143-156.
14. Sardarzadeh F, Jian Bagheri M, malake FM. The role of resilience in reduction of job stress and job burnout among employees of satellite project of Iranian Offshore Oil Company. Shenakht J Psych Psychiat. 2016;3(4):61-77.
15. Cochran WG. Sampling techniques: John Wiley & Sons; 2007.
16. Alami A, Moshki M, Alimardani A. Development and validation of theory of planned behavior questionnaire for exclusive breastfeeding. J Neyshabur Uni Med Sci. 2014;2:45-53.
17. Monazam M, Laal F, Sarsangi V, Fallahmadvari R, Najafi K, Fallahmadvari A. Designing and determination of validity and reliability of the questionnaire increasing the duration of using the hearing protection device by workers based on basnef model. Sci J Ilam Uni Med Sci. 2018;25(6):21-8. DOI: 10.29252/sjimu.25.6.21 [DOI:10.29252/sjimu.25.6.21]
18. Najafi M, Kohan N, Najafi M, Mohammadzadeh Esmaily H, Shirazi M. Assessment of validity and reliability of attitudes to health professionals questionnaire (AHPQ) in Iran. Res Med Educ. 2015;7(2):21-8. DOI: 10.18869/acadpub. rme.7.2.21 [DOI:10.18869/acadpub]
19. Reynolds HY. In choosing a research health career, mentoring is essential. Lung. 2008;186(1):1-6. [PMID: 17990035] DOI: 10.1007/s00408-007-9050-x [DOI:10.1007/s00408-007-9050-x] [PMID]
20. Arghami S, Moradi M, Habibi F. Developing a Mental Fatigue Questionnaire for public transport bus drivers. Iran J Ergon. 2015;3(3):30-7.
21. Lawshe CH. A quantitative approach to content validity. Pers Psychol. 1975;28(4):563-75. DOI: 10.1111/j.1744-6570.1975.tb01393.x [DOI:10.1111/j.1744-6570.1975.tb01393.x]
22. Yaghmaei F. Content validity and its estimation. J Med Educ. 2003;3(1):25-27.
23. Birell N, Davies P. Quantum Fields in Curved Space, Cambridge: Cambridge U. Press; 1982. [DOI:10.1017/CBO9780511622632]
24. Fallah Madvari R, Mosa Farokhani M, Fallah Madvari A, Mirfakhraei F, Laal F. Development and validity of krik patrick's evaluation tool to investiagte the efficincy of the training course on workers' use of hearing protection equipment. Arch Occupa Health. 2018;2(4):193-8.
25. Farshad AA, Khosravi Y, Alizadeh SS. The Role of HSE management System in Improving health, safety and environment performance in an Oil Organization. Iran Occup Health. 2006;3(2):21-29.
26. Sabzipoor M, Ahmadizad A, Esmaeili Givi MR. Analyzing the relationship between organizational atmosphere and attitude variables and transparent behaviors in public library manpower. Inform Res Pub Lib. 2012;17(4):623-647.
27. Preacher KJ, Kelley K. Effect size measures for mediation models: quantitative strategies for communicating indirect effects. Psychol Methods. 2011;16(2):93-115. DOI: 10.1037/a0022658 [PMID: 21500915] [DOI:10.1037/a0022658] [PMID]
28. Azmi FS, Shahid SAM, Alwi A. The relationship between job stress and front-liners' job performance in a shared service center in Malaysia. Int J Social Scienc Humanit. 2016;6(7):510-513. DOI: 10.7763/IJSSH.2016.V6.701 [DOI:10.7763/IJSSH.2016.V6.701]
29. Ngatimun N, Musriati T, Suharsono J, Candra SD. Occupational stress as mediator of relationship between workload, emotional intelligence and teacher's performance in probolinggo regency. Owner. 2020;4(1):104-13. DOI: 10.33395/owner.v4i1.223 [DOI:10.33395/owner.v4i1.223]
30. Johari J, Tan FY, Zulkarnain ZIT. Autonomy, workload, work-life balance and job performance among teachers. Int Journal Educational Management. 2018;32(1). [DOI:10.1108/IJEM-10-2016-0226]
31. Madadzadeh M, Barati H, Ahmadi Asour A. The association between workload and job stress among nurses in Vasei hospital, Sabzevar city, Iran, in 2016. J Occup Health Epid. 2018;7(2):83-89. DOI: 10.29252/johe.7.2.83 [DOI:10.29252/johe.7.2.83]
32. Amran FW, Ghazali H, Saedahtinnur H. Influence of working environment, workload, and job autonomy towards job stress: a case of casual dining restaurant employees in Klang Valley, Malaysia. Int J Acad Res Bus Soc Sci. 2019;1:745-53. DOI: 10.6007/IJARBSS/v9-i5/6003
33. Irvan RM, Heryanto H. The effect of competence and workload on motivation and its impact on the performance of civil servants at the regional secretariat of the regency of dharmasraya. Arch Bus Res. 2019;7(5):134-142. DOI: 10.14738/abr.75.6461
34. Bharathi T, Gupta K. Job stress and productivity: A conceptual framework. Int J Emerg Res Manag Technol. 2017;6(8):393-8 [DOI:10.23956/ijermt.v6i8.171]
35. Klassen RM, Chiu MM. Effects on teachers' self-efficacy and job satisfaction: Teacher gender, years of experience, and job stress. J Educ Psychol. 2010;102(3):741-756. DOI:10.1037/a0019237. [DOI:10.1037/a0019237]

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