Depression as a Predictor Rumination, Cognitive Defusion, and Subjective Vitality among University Students

Year 2025, Volume: 11 Issue: 2, 343 - 355, 30.11.2025

Uğur Doğan , Tuğba Seda Çolak Turan , Betül Düşünceli

https://doi.org/10.30613/curesosc.1560955

Abstract

The study aims to examine university students' rumination, cognitive defusion, and subjective vitality levels according to their depression levels. The study group consists of 846 students from two different universities. The data in this study was gathered by the Lovibond Depression, Anxiety, and Stress Scale, Ruminative Response Scale, Drexel Defusion Scale, and Subjective Vitality Scale. To reveal the relationship between variables in the data, the Pearson moment correlation coefficient was calculated. To determine if the rumination, cognitive defusion, and subjective vitality levels change in accordance with the depressive symptoms of the participants, ANOVA analysis was implemented, and to determine if there is a difference between the groups, Tukey was calculated among post hoc tests. The Jamovi (2019) program was used for the analysis of the data. As a result of this study, it was concluded that depression is negatively related to cognitive defusion and subject vitality, positively related to rumination. As the depression levels of individuals increase, their rumination level increases, their cognitive defusion levels decrease, and their subjective vitality levels decrease. At the same time, there was a negative relationship between rumination, cognitive defusion, and subjective vitality. There was a positive relationship between cognitive defusion and subjective vitality. The findings demonstrate that depression plays a critical role in shaping mental health dynamics among university students, offering novel insights into the interactions between depression, rumination, cognitive defusion, and subjective vitality.

Keywords

Depression , Rumination , Cognitive Defusion , Subjective Vitality

Ethical Statement

This study was approved by the Düzce University Rectorate Scientific Research and Publication Ethics Committee on 21.05.2020, with the decision numbered 78187535/640/.

Üniversite Öğrencilerinde Depresyonun Ruminasyon, Bilişsel Ayrışma ve Öznel Zindelik Üzerindeki Yordayıcı Rolü

Abstract

Bu çalışmanın amacı üniversite öğrencilerinin depresyon düzeylerine göre ruminasyon, bilişsel ayrışma ve öznel zindelik düzeylerinin incelenmesidir. Araştırmanın çalışma grubu iki farklı üniversitede öğrenim gören toplam 846 öğrenciden oluşmaktadır. Araştırmada veriler Lovibond Depresyon Anksiyete ve Stres Ölçeği, Ruminatif Tepkiler Ölçeği, Drexel Ayrışma Ölçeği ve Subjektif Zindelik Ölçeği aracılığıyla toplanmıştır. Verilerin analizinde değişkenler arasındaki ilişkiyi ortaya koymak amacıyla pearson momentler korelasyon katsayısı hesaplanmıştır. Ruminasyon, bilişsel ayrışma ve öznel zindelik, değişkenlerinin katılımcıların depresif belirti düzeylerine göre değişip değişmediğini belirlemek için ise ANOVA analizi yapılmış, gruplar arasındaki fark olup olmadığını belirlemek için ise post hoc testlerinden Tukey hesaplanmıştır. Verilerin analizi için Jamovi (2019) programı kullanılmıştır. Araştırma sonucunda depresyon ile bilişsel ayrışma ve öznel zindelik negatif, ruminasyon ise pozitif ilişkili bulunmuştur. Depresyon düzeyi yükseldikçe bireylerde ruminasyon düzeyi yükselirken, bilişsel ayrışma ve öznel zindelik düzeyi düşmektedir. Aynı zamanda bilişsel ayrışma ve öznel zindelik ile ruminasyon arasında negatif ilişki bulunurken, öznel zindelik ve bilişsel ayrışma arasında pozitif ilişki bulunmuştur. Araştırma bulguları, depresyonun üniversite öğrencilerinde ruh sağlığı dinamiklerini şekillendirmede kritik bir rol oynadığını ortaya koymakta ve depresyon, ruminasyon, bilişsel ayrışma ile öznel canlılık arasındaki etkileşime dair özgün bakış açıları sunmaktadır.

Keywords

Depresyon , Ruminasyon , Bilişsel Ayrışma , Öznel Zindelik

Ethical Statement

Bu çalışma, 21.05.2020 tarihinde 78187535/640/ sayılı kararla Düzce Üniversitesi Rektörlüğü Bilimsel Araştırma ve Yayın Etik Kurulu tarafından onaylanmıştır.

References

• Akın, A. & Çetin, B. (2007). The Depression Anxiety and Stress Scale (DASS): The study of validity and reliability. Kuram ve Uygulamada Eğitim Bilimleri, 7(1), 260–268.
• Akın, A., Satici, S. A., Arslan, S., Akın, Ü., & Kayıs, A. R. (2012, February). The validity and the reliability of the Turkish version of the Subjective Vitality Scale (SVS). Paper presented at the 4rd World Conference on Educational Sciences. Barcelona, Spain
• Al-Garni, A.M., Shati, A.A., Almonawar, N.A., Alamri, G.M., Alasmre, L.A., Saad, T.N., …, Ghazy, R.M. (2025). Prevalence of depression, anxiety, and stress among students enrolled at King Khalid University: a cross-sectional study. BMC Public Health 25, 354. https://doi.org/10.1186/s12889-025-21277-7
• Arslan, G., Yıldırım, M., & Aytaç, M. (2020). Subjective vitality and loneliness explain how Coronavirus anxiety increases rumination among college students. Death Studies, 46(5), 1042–1051. https://doi.org/10.1080/07481187.2020.1824204
• Assaz, D. A., Roche, B., Kanter, J. W., & Oshiro, C. K. B. (2018). Cognitive defusion in acceptance and commitment therapy: what are the basic processes of change?. The Psychological Record, 68, 405–418. https://doi.org/10.1007/s40732-017-0254-z
• Association, A. P. (2013). Diagnostic and Statistical Manual of Mental Disorders (5th ed.). Washington, DC.
• Aydın, G. & Yerin Güneri, O. (2018). A study on Turkish adaptation of Drexel Defusion Scale (DDS). Paper presented at 27th International Congress of Educational Sciences. Antalya, Türkiye.
• Bayram, N., & Bilgel, N. (2008). The prevalence and socio-demographic correlations of depression, anxiety and stress among a group of university students. Social Psychiatry and Psychiatric Epidemiology, 43, 667-672. https://doi.org/10.1007/s00127-008-0345-x
• Bethay, J. S. , Wilson, K. G., & Moyer, K. H. (2009). Acceptance and commitment therapy training for work stress and burnout in mental health direct care providers. Acceptance and Commitment Therapy : Contemporary Theory Research and Practice. (J.T. Blackledge, J. Ciarrochi, & F.P. Deane, Eds.). Australian Academic Press.
• Blackledge, J. T. (2015). Cognitive defusion in practice: A clinician's guide to assessing, observing, and supporting change in your client. Context Press.
• Cooney, R.E., Joormann, J., Eugène, F., Dennis, E.L., & Gotlib, I.H. (2010). Neural correlates of rumination in depression. Cognitive, Affective, & Behavioral Neuroscience, 10 (4), 470-478. https://doi.org/10.3758/CABN.10.4.470
• Çokluk, Ö., Şekercioğlu, G., & Büyüköztürk, Ş. (2010). Multivariate statistics for social sciences: SPSS and LISREL applications. Pegem Akademi.
• Ekşi, H., Erök-Özkapu, D., & Ümmet, D. (2019). Üniversite öğrencilerinde psikolojik kırılganlıkla öznel zindelik arasındaki ilişkide genel psikolojik sağlığın aracı rolü. Journal of Social Sciences of Mus Alparslan University, 7(5), 185-190.
• Erdur-Baker, O., & Bugay, A. (2012). The Turkish version of the ruminative response scale: An examination of its reliability and validity. The International Journal of Educational and Psychological Assessment, 10(2), 1-16.
• Erdur-Baker, Ö. (2009). Peer victimization, rumination, and problem solving as risk contributors to adolescents’ depressive symptoms. The Journal of Psychology, 143(1), 78-90. https://doi.org/10.3200/JRLP.143.1.78-90
• Erduran Tekin, Ö. (2022). The mediating role of cognitive defusion in the relationship between rumination and psychological flexibility (acceptance) of university student. International Journal of Eurasian Education and Culture, 7(18), 1581-1627. https://doi.org/10.35826/ijoecc.605
• Field, A. (2018). Discovering statistics using IBM SPSS Statistics (5th ed.). Sage.
• Fini, A. A. S., Kavousianb, J., Beigyb, A., & Emami, M., (2010). Subjective vitality and its anticipating variables on students. Procedia Social and Behavioral Sciences, 5, 150-156. https://doi.org/10.1016/j.sbspro.2010.07.064
• Forman, E. M., Herbert, J. D., Juarascio, A. S., Yeomans, P. D., Zebell, J. A., Goetter, E. M., & Moitra, E. (2012). The Drexel defusion scale: A new measure of experiential distancing. Journal of Contextual Behavioral Science, 1(1-2), 55–65. https://doi.org/10.1016/j.jcbs.2012.09.001
• Fox, J., & Weisberg, S. (2018). Car: Companion to applied regression. [R package]. Retrieved from https://cran.r-project.org/package=car.
• Gelenberg, A. J. (2010). The prevalence and impact of depression. The Journal of clinical psychiatry, 71(3), e06. https://doi.org/10.4088/JCP.8001tx17c
• Gotlib, I. H., & Joormann, J. (2010). Cognition and depression: current status and future directions. Annual Review of Clinical Psychology, 6, 285-312. https://doi.org/1548-5943/10/0427
• Hair, J. F., Anderson, R. E., Tahtam, R. L. & Black, C. W.(1998). Multivariate data analysis (5th Edition). PrenticeHall.
• Han, SS., Zhang, YS., Zhu, W., Ye, Y.P.,, Li, Y.X., Meng, S.Q.,…, Xu, C.Y.. (2025) Status and epidemiological characteristics of depression and anxiety among Chinese university students in 2023. BMC Public Health, 25, 1189. https://doi.org/10.1186/s12889-025-22443-7
• Hsu, K. J., Beard, C., Rifkin, L., Dillon, D. G., Pizzagalli, D. A., & Björgvinsson, T. (2015). Transdiagnostic mechanisms in depression and anxiety: The role of rumination and attentional control. Journal of Affective Disorders, 118, 22-27. https://doi.org/10.1016/j.jad.2015.08.008
• Hunt, J., & Eisenberg, D. (2010). Mental health problems and help-seeking behavior among college students. Journal of Adolescent Health, 46(1), 3-10. doi: 10.1016/j.jadohealth.2009.08.008
• Hysenbegasi, A., Hass, S. L., & Rowland, C. R. (2005). The impact of depression on the academic productivity of university students. The Journal of Mental Health Policy and Economics, 8, 145-151.
• İbrahim, A., Kelly, S. J.,Adams, C.E. & Glazebrook, C. (2013). A systematic review of studies of depression prevalence in university students. Journal of Psychiatric Research, 47, 391-400. https://doi.org/10.1016/j.jpsychires.2012.11.015
• Kirkegaard-Thomsen, D., Yung- Mehlsen,M., Christensen, S., & Zachariae, R. (2003). Rumination-relationship with negative mood and sleep quality. Personality and Individual Differences, 34, 1293-1301. https://doi.org/0191-8869/02/$
• Krafft, J., Klimczak, K.S. & Levin, M.E. (2022). Effects of cognitive restructuring and defusion for coping with difficult thoughts in a predominantly white female college student sample. Cognitive Therapy and Research, 46, 86–94. https://doi.org/10.1007/s10608-021-10242-4
• Lenth, R. (2018). Emmeans: Estimated marginal means, aka least-squares means. [R package]. Retrieved from https://cran.r-project.org/package=emmeans.
• Lovibond, P. F., & Lovibond, S. H. (1995). The structure of negative emotional states: Comparison of the Depression Anxiety Stress Scales (DASS) with the Beck Depression and Anxiety Inventories. Behaviour Research and Therapy, 33(3), 335-343. https://doi.org/10.1016/0005-7967(94)00075-U
• Lyubomirsky, S., & Nolen-Hoeksema, S. (1993). Self-perpetuating properties of dysphoric rumination. Journal of Personality and Social Psychology, 65(2), 339-349. https://doi.org/10.1037/0022-3514.65.2.339
• Mackenzie, S., Wiegel, J. R., Mundt, M., Brown, D., Saewyc, E., Heiligenstein, E., . . . Fleming, M. (2011). Depression and suicide ideation among students accessing campus health care. American Journal of Orthopsychiatry, 81(1), 101-107. https://doi.org/10.1111/j.1939-0025.2010.01077.x
• Masuda, A., Twohig, M.P., Stormoa, A.R., Feinstein, A.B., Chou, Y., & Wendell, J. W. (2010). The effects of cognitive defusion and thought distraction on emotional discomfort and believability of negative self-referential thoughts. Journal of Behavior Therapy and Experimental Psychiatry. 41,11-17. https://doi.org/10.1016/j.jbtep.2009.08.006
• Morrison, R. & O’Connor, R.C. (2005). Predicting psychological distress in college students: The role of rumination and stress. Journal of Clinical Psychology, 61(4), 447–460. https://doi.org/10.1002/jclp.20021
• Nalbant, A., & Yavuz, K. F.(2019). Dil kozasından çıkış: Bilişsel ayrışma. Bilişsel Davranışçı Psikoterapi ve Araştırmalar Dergisi, 8(1), 58-62. https://doi.org/10.5455/JCBPR.33709
• Nolen-Hoeksema, S. (1987). Sex differences in unipolar depression: Evidence and theory. Psychological Bulletin, 101(2), 259-282. https://doi.org/0033-2909/87/J00.75
• Nolen-Hoeksema, S. (1991). Responses to depression and their effects on the duration of depressive episodes. Journal of Abnormal Psychology, 100, 569–582. https://doi.org/0021-843X/91/J3.00
• Nolen-Hoeksema, S. (2000). The role of rumination in depressive disorders and mixed anxiety/depressive symptoms. Journal of Abnormal Psychology, 109(3), 504-511. https://doi.org/101037/10021-843X.109.3.504
• Nolen-Hoeksema, S., & Harrell, Z.A. (2002). Rumination, depression and alcohol use: Test of gender differences. Journal of Cognitive Psychotherapy: An International Quarterly, 16(4), 391-403. https://doi.org/10.1891/jcop.16.4.391.52526
• Nolen-Hoeksema, S., & Morrow, J. (1991). A prospective study of depression and post- traumatic stress symptoms following a natural disaster: The 1989 Loma Prieta Earthquake. Journal of Personality and Social Psychology, 61(3), 115-121. https://doi.org/10.1037/0022-3514.61.1.115
• Nolen-Hoeksema, S., Wisco, B.E., & Lyubomirsky, S. (2008). Rethinking rumination. Perspectives on Psychological Science, 3(5), 400-424. https://doi.org/10.1111/j.1745-6924.2008.00088.x.
• Noureen, S.,& Malik, S. (2021) Conceptualized-self and depression symptoms among university students: Mediating role of cognitive fusion. Current Psychology, 40, 5106–5114. https://doi.org/10.1007/s12144-019-00450-3
• O'Loughlina, C. M., Bennettb, D. S., & O'Hayer, C. V. (2020). The nomological network of cognitive fusion among people living with HIV: Associations with rumination, shame, and depressive symptoms. Journal of Contextual Behavioral Science, 15, 245-252. https://doi.org/10.1016/j.jcbs.2020.01.012
• Papageorgiou, C. & Wells, A. (2004). Nature, functions, and beliefs about depressive rumination. Depressive Rumination, Nature, Theory and Treatment (Edit. Papageorgiou, C. & Wells, A.). Wiley.
• Papageorgiou, C., & Wells, A. (2003). An Empirical test of a clinical metacognitive model of rumination and depression. Cognitive Therapy and Research, 27(3), 261-273. https://doi.org/10.1023/A:1023962332399
• Pilecki, B. C., & McKay, D. (2012). An experimental investigation of cognitive defusion. The Psychological Record, 62, 19-40. https://doi.org/10.1007/BF03395784
• R Core Team (2018). R: A Language and envionment for statistical computing. [Computer software]. Retrieved from https://cran.r-project.org/.
• Roelofs, J., Papageorgiou, C., Gerber, R.D., Huibers, M., Peeters F., & Arntz, A. (2007). On the links between self-discrepancies, rumination, metacognitions, and symptoms of depression in undergraduates. Behaviour Research and Therapy, 45, 1295-1305. https://doi.org/10.1016/j.brat.2006.10.005
• Ryan, R. M., & Deci, E. L. (2001). On happiness and human potentials: A review of research on hedonic and eudaimonic well-being. Annual Review of Psychology, 52, 141-166. https://doi.org/10.1146/annurev.psych.52.1.141
• Ryan, R. M., & Frederick, C. (1997). On energy, personality, and health: Subjective vitality as a dynamic reflection of well‐being. Journal of Personality, 65(3), 529-565. https://doi.org/10.1111/j.1467-6494.1997.tb00326.x
• Ryan, R. M., Huta, V., & Deci, E. L. (2008). Living well: A self-determination theory perspective on eudaimonia. Journal of Happiness Studies, 9(1), 117-139. https://doi.org/10.1007/s10902-006-9023-4
• Sarokhani, D., Delpisheh, A., Veisani, Y., Sarokhani, M. T., Manesh, R. H., & Sayehmiri, K. (2013). Prevalence of depression among university students: a systematic review and meta-analysis study. Depression Research and Treatment, 373857, 1-7. https://doi.org/10.1155/2013/373857
• Sprent, P. & Smeeton, N.C. (2007). Applied Nonparametric Statistical Methods (4th Edition). Chapman and Hall/CRC
• The jamovi project (2019). Jamovi. (Version 1.1) [Computer Software]. Retrieved from https://www.jamovi.org
• Türkçapar, M. H. (2007). Bilişsel terapi, temel ilkeler ve uygulama. HYB yayıncılık.