Staff Stressors as Predictors of Teacher Efficacy among Lecturers
Keywords:
Staff stressors, teacher efficacy, lecturers, private higher education, Job Demands–Resources model, PLS-SEMAbstract
This study investigates the effect of staff stressors on teacher efficacy among lecturers in private higher education institutions in the Ningxia Hui Autonomous Region of China. A quantitative cross-sectional survey was conducted involving 407 full-time lecturers from three private higher education institutions. Staff stressors were measured across six dimensions: recognition, perceived organizational practices, factors intrinsic to teaching, financial inadequacy, home/work interface, and new challenges, while teacher efficacy was assessed in terms of instructional strategies, classroom management, and student engagement. Data were analysed using SPSS 27.0 and Partial Least Squares Structural Equation Modeling (PLS-SEM) in SmartPLS 4.0. The findings indicated that staff stressors were at a moderate level (M = 3.18, SD = .764), with new challenges recording the highest mean (M = 3.45, SD = .982). Teacher efficacy was also moderate (M = 2.83, SD = .709). More importantly, staff stressors had a significant negative effect on teacher efficacy (β = −.616, t = 18.705, p < .001), explaining 45.6% of the variance in teacher efficacy (R² = .456). The findings suggest that increasing work-related stressors can substantially weaken lecturers’ confidence in performing their teaching roles. Guided by the Job Demands–Resources model, the study highlights the importance of reducing excessive job demands and strengthening institutional support to sustain lecturers’ teaching efficacy.References
1. Kuppan P, Rajadurai A, Narayanan S (2008) Influence of EDM process parameters in deep hole drilling of Inconel 718. Int J Adv Manuf Technol. https://doi.org/10.1007/s00170-007-1084-y
2. Singh V, Pradhan SK (2014) Optimization of WEDM process parameters. Appl Mech Mater. https://doi.org/10.4028/www.scientific.net/AMM.592-594.831
3. Goswami A, Kumar J (2014) Optimization in wire-cut EDM of Nimonic-80A using Taguchi’s approach and utility concept. Eng Sci Technol Int J. https://doi.org/10.1016/j.jestch.2014.07.001
4. Mohan B, Rajadurai A, Satyanarayana KG (2004) Electric discharge machining of Al–SiC metal matrix composites using rotary tube electrode. J Mater Process Technol.
https://doi.org/10.1016/j.jmatprotec.2004.04.347
5. Sidhu SS, Batish A, Kumar S (2014) Study of surface properties in particulate-reinforced metal matrix composites (MMCs) using powder-mixed electrical discharge machining (EDM). Mater Manuf Process. https://doi.org/10.1080/10426914.2013.852211
6. Saha SK, Choudhury SK (2009) Experimental investigation and empirical modeling of the dry electric discharge machining process. Int J Mach Tools Manuf.
https://doi.org/10.1016/j.ijmachtools.2008.10.012
7. Joshi S, Govindan P, Malshe A, Rajurkar K (2011) Experimental characterization of dry EDM performed in a pulsating magnetic field. CIRP Ann Manufacturing Technology 60:239–242
8. Tao J, Shih AJ, Ni J (2008) Experimental study of the dry and near-dry electrical discharge milling processes. J Manuf Sci Eng 130:11002–11009
9. Puthumana G, Joshi SS (2011) Investigations into performance of dry EDM using slotted electrodes. Int J Precis Eng Manuf. https://doi.org/10.1007/s12541-011-0128-2
10. Singh NK, Pandey PM, Singh KK (2017) Experimental investigations into the performance of EDM using argon gas-assisted perforated electrodes. Mater Manuf Process.
https://doi.org/10.1080/10426914.2016.1221079
11. Singh NK, Pandey PM, Singh KK (2016) EDM with an air-assisted multi-hole rotating tool. Mater Manuf Process. https://doi.org/10.1080/10426914.2015.1127954
12. Zhang QH, Zhang JH, Ren SF, Deng JX, Ai X (2004) Study on technology of ultrasonic vibration aided electrical discharge machining in gas. J Mater Process Technol.
https://doi.org/10.1016/j.jmatprotec.2004.02.025
13. Govindan P, Joshi SS (2010) Experimental characterization of material removal in dry electrical discharge drilling. Int J Mach Tools Manuf. https://doi.org/10.1016/j.ijmachtools.2010.02.004
14. Lin YC, Lee HS (2009) Optimization of machining parameters using magnetic-force-assisted EDM based on gray relational analysis. Int J Adv Manuf Technol 42:1052–1064
15. Teimouri R, Baseri H (2013) Experimental study of rotary magnetic field-assisted dry EDM with ultrasonic vibration of workpiece. Int J Adv Manuf Technol 67:1371–1384
16. Govindan P, Gupta A, Joshi SS, Malshe A, Rajurkar KP (2013) Single-spark analysis of removal phenomenon in magnetic field assisted dry EDM. J Mater Process Technol 213:1048–1058
17. Chattopadhyay KD, Satsangi PS, Verma S, Sharma PC (2008) Analysis of rotary electrical discharge machining characteristics in reversal magnetic field for copper-en8 steel system. Int J Adv Manuf Technol. https://doi.org/10.1007/s00170-007-1149-y
18. Shahri HRF, Mahdavinejad R (2018) A novel method towards approximation of the temperature distribution in electric discharge machining of Ti–6Al–4V by up-scaling approach. Int J Adv Manuf
Technol. https://doi.org/10.1007/s00170-018-1578-9 19. Wang T, Zhe J, Zhang YQ, Li YL, Wen XR (2013) Thermal and fluid field simulation of single pulse
discharge in dry EDM. Procedia CIRP. https://doi.org/10.1016/j.procir.2013.03.032
20. Bhattacharya A, Batish A, Bhatt G (2015) Material transfer mechanism during magnetic field-assisted electric discharge machining of AISI D2, D3 and H13 die steel. Proc Inst Mech Eng Part B J Eng Manuf 229:62–74
21. Singh S, Maheshwari S, Pandey PC (2004) Some investigations into the electric discharge machining of hardened tool steel using different electrode materials. J Mater Process Technol. https://doi.org/10.1016/j.jmatprotec.2003.11.046
22. Maradia U, Boccadoro M, Stirnimann J, Kuster F, Wegener K (2015) Electrode wear protection mechanism in meso–micro-EDM. J Mater Process Technol.
https://doi.org/10.1016/j.jmatprotec.2015.03.039
23. Zhang Y, Liu Y, Ji R, Cai B (2011) Study of the recast layer of a surface machined by sinking electrical discharge machining using water-in-oil emulsion as dielectric. Appl Surf Sci.
https://doi.org/10.1016/j.apsusc.2011.01.083
24. Yan BH, Chang GW, Chang JH, Hsu RT (2004) Improving electrical discharge machined surfaces using magnetic abrasive finishing. Mach Sci Technol. https://doi.org/10.1081/MST-120034246
25. Zhang Z, Huang H, Ming W, Xu Z, Huang Y, Zhang G (2016) Study on machining characteristics of WEDM with ultrasonic vibration and magnetic field assisted techniques. J Mater Process Technol 234:342–352
26. Lin YC, Chuang FP, Wang AC, Chow HM (2014) Machining characteristics of hybrid EDM with ultrasonic vibration and assisted magnetic force. Int J Precis Eng Manuf.
https://doi.org/10.1007/s12541-014-0449-z
27. Hoang KT, Yang SH (2013) A study on the effect of different vibration-assisted methods in microWEDM. J Mater Process Technol. https://doi.org/10.1016/j.jmatprotec.2013.03.025
28. Ghoreishi M, Atkinson J (2002) A comparative experimental study of machining characteristics in vibratory, rotary and vibro-rotary electro-discharge machining. J Mater Process Technol. https://doi.org/10.1016/S0924-0136(01)01160-8
29. Beravala H, Pandey PM (2018) Experimental investigations to evaluate the effect of magnetic field on the performance of air and argon gas assisted EDM processes. J Manuf Process 34:356–373
30. Khan AA (2008) Electrode wear and material removal rate during EDM of aluminum and mild steel using copper and brass electrodes. Int J Adv Manuf Technol. https://doi.org/10.1007/s00170-007-1241- 3
31. Investigation of a novel finishing tool in magnetic field assisted finishing for titanium alloy Ti-6Al-4V J. Manuf. Process.(2019)
32. J. Guo et al. (2018) Investigation on surface integrity of rapidly solidified aluminum RSA 905 by magnetic field-assisted finishing Micromachines.
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License.
Articles published in the Journal of Advanced Multidisciplinary Studies (JAMS) are licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), unless otherwise stated. Authors retain copyright of their work and grant JAMS the right of first publication.
