Predictors of completion time of doctoral programmes in public universities in Southwestern Nigeria
DOI:
https://doi.org/10.51867/ajernet.7.3.138Keywords:
Completion Time, Doctoral Programme, Student Factors, Supervision, School FactorsAbstract
The Doctor of Philosophy (PhD) is the most essential degree for a career in academia because it guarantees professional recognition and professionalism. The timely completion of a PhD programme is a crucial metric used by many institutions to assess programme completion. Numerous Ph.D. candidates in Nigerian institutions were unable to complete their programmes within the allotted five years, according to studies. Consequently, this study examined variables that affect completion times of doctoral programmes (CTDP) at public universities in southwest Nigeria (PUSWN). The Expectancy Theory served as the anchor, while explanatory survey approach was adopted. Out of 7,300 PhD students, a sample of 528 participants from four universities: University of Ibadan, University of Lagos, Olabisi Onabanjo University, and Ekiti State University, was chosen using the multi-stage sampling measures. Data were gathered using two questionnaires called the "Completion of Doctoral Programme Questionnaire" (CDPQ) and the "Predictors of Completion of Ph.D. Questionnaire" (PCPQ). Two null hypotheses were set up and tested through multiple regression at the 0.05 significance level. Results revealed that learner, supervisory, and institutional factors (IFs) combined explained 13% of the variance in CTDP among PUSWN. The model was significant (F(3, 461)=25.973, Adj. R2=0.13). Student-related characteristics were predictive of the length of the Ph.D. programme (β=0.275, t=2.425, p<0.05). In addition, IFs outperformed supervision factors as predictors (β=0.277, t=2.892, p<0.05). The study's conclusions led to the recommendation that institutional and student aspects be given priority in order to guarantee the timely completion of Ph.D. programmes at PUSWN.
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Abiodun-Oyebanji, O. J. (2024). Student factors as correlate of completion time of Ph.D. programmes in public universities in Southwestern Nigeria. International Journal of Research and Innovation in Social Science, 8(7), 2395-2401. https://doi.org/10.47772/IJRISS.2024.807187
Adeyemi, A. M., & Adeyemi, S. B. (2014). Institutional factors as predictors of students' academic achievement in colleges of education in South-Western Nigeria. International Journal of Educational Administration and Policy Studies, 6(8), 141-153. https://doi.org/10.5897/IJEAPS2014.0342
Atanda, A. I., & Jaiyeoba, A. O. (2011). Effects of school-based quality factors on secondary school students' achievement in English language in South-Western and North-Central Nigeria. Journal of Emerging Trends in Educational Research and Policy Studies, 2(2), 93-99.
Dimitrova, R. (2016). Ingredients of good PhD supervision: Evidence from a student survey at Stockholm University. Utbildning & Lärande, 10(1), 40-52.
Jiranek, V. (2010). Potential predictors of timely completion among dissertation research students at an Australian faculty of sciences. International Journal of Doctoral Studies, 5, 1-13. https://doi.org/10.28945/709
Katz, R. (2018). Crises in a doctoral research project: A comparative study. International Journal of Doctoral Studies, 13, 211-231. https://doi.org/10.28945/4044
Kayode, G. A., Amoakoh-Coleman, M., Brown-Davies, C., Grobbee, D. E., Agyepong, I. A., Ansah, E., & Klipstein-Grobusch, K. (2014). Quantifying the validity of routine neonatal healthcare data in the Greater Accra Region, Ghana. PLoS ONE, 9(8), e104053. https://doi.org/10.1371/journal.pone.0104053
Lagoke, O., Ogunmodede, A., & Toromade, A. S. (2025). Exploring the impact of Nigeria's oil and gas local content policy on higher education institutions: A social network analysis approach. Higher Education Studies, 15(4), 483-496. https://doi.org/10.5539/hes.v15n4p483
Lunyolo, O., Bakkabulindi, F. E., & Tusiime, H. M. (2019). Adapting Leech's model to explore predictors of successful doctoral student completion in Makerere University: A concept paper. East African Journal of Education Studies, 4(1), 33-42.
Motte, A., & Schwartz, S. (2009). Are student employment and academic success linked? Canada Millennium Scholarship Foundation.
Olubusoye, O. E., & Olusoji, O. D. (2014). Determinants of PhD completion time at the University of Ibadan, Nigeria. African Journal of Sustainable Development, 4(2), 79-98.
Owler, K. (2010). A 'problem' to be managed? Completing a PhD in the arts and humanities. Arts and Humanities in Higher Education, 9(3), 289-304. https://doi.org/10.1177/1474022209356330
Quadri, G. O., & Agbojo, A. (2026). Completion of PhD programs and its implications for higher education efficiency. Annals of Spiru Haret University: Economic Series, 26(1), 677-688. https://doi.org/10.26458/26131
Ren, J., & Hagedorn, L. S. (2012). International graduate students' academic performance: What are the influencing factors? Journal of International Students, 2(2), 135-143. https://doi.org/10.32674/jis.v2i2.526
Shariff, N. M., Ramli, K. I., Ahmad, R., & Abidin, A. Z. (2015). Factors contributing to the timely completion of PhD at the Malaysian public higher educational institutions. International Journal of Humanities, Social Sciences and Education, 2(1), 256-263.
Siegfried, J. J., & Stock, W. A. (2001). So you want to earn a Ph.D. in economics: How long do you think it will take? The Journal of Human Resources, 36(2), 364-378. https://doi.org/10.2307/3069663
Soumana, A. O., & Uddin, M. R. (2017). Factors influencing the degree progress of international PhD students from Africa: An exploratory study. Üniversitepark Bülten, 6(1), 79-94. https://doi.org/10.22521/unibulletin.2017.61.7
Spaulding, L. S., & Rockinson-Szapkiw, A. J. (2012). Hearing their voices: Factors doctoral candidates attribute to their persistence. International Journal of Doctoral Studies, 7, 199-219. https://doi.org/10.28945/1589
Spronken-Smith, R. (2018). Reforming doctoral education: There is a better way (Research & Occasional Paper Series: CSHE.9.18). Center for Studies in Higher Education, University of California, Berkeley.
Spronken-Smith, R., Cameron, C., & Quigg, R. (2018). Factors contributing to high PhD completion rates: A case study in a research-intensive university in New Zealand. Assessment & Evaluation in Higher Education, 43(1), 94-109. https://doi.org/10.1080/02602938.2017.1298717
Sverdlik, A., Hall, N. C., McAlpine, L., & Hubbard, K. (2018). The PhD experience: A review of the factors influencing doctoral students' completion, achievement, and well-being. International Journal of Doctoral Studies, 13, 361-388. https://doi.org/10.28945/4113
Vossensteyn, H., Kottmann, A., Jongbloed, B. W. A., Kaiser, F., Cremonini, L., Stensaker, B., Hovdhaugen, E., & Wollscheid, S. (2015). Dropout and completion in higher education in Europe: Main report. European Union. https://doi.org/10.2766/826962
West, R., Usher, K., Foster, K., & Stewart, L. (2014). Academic staff perceptions of factors underlying programme completion by Australian Indigenous nursing students. The Qualitative Report, 19(24), 1-19.
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