dr. J.T. Kraiss (Jannis)

Assistant Professor
BMS-HIB-PHT
Capitool 15 241
j.t.kraiss@utwente.nl
+31534897512
Business card

I do research in the clinical and mental health field and on research methodologies. I am particularly interested in (mental) health dynamics and how they occur in daily life. I want to understand how individual differences in within-person processes (e.g., how someone reacts to stressful events) are related to health and resilience. I am also interested in understanding if (and how) we can personalize interventions based on this information (e.g., positive psychology or compassion-focused interventions), so that they specifically target mechanisms relevant for an individual and more effectively and efficiently increase health and resilience. For this purpose, I use intensive longitudinal methods (e.g., experience sampling), which allows us to obtain an ecologically valid picture of individual mental health dynamics as they happen in daily life. I apply advanced statistical techniques to study these phenomena, for example dynamic structural equation modelling or network analyses. Besides, I do research on specific methodological aspects of intensive longitudinal methods. Here, I am interested in differences in between- and (individual) within-person models, how we can best measure constructs in daily life, and what impact different study design decision have on the conclusions we draw from intensive longitudinal studies. I also have ample experience in doing systematic reviews, applying (multilevel) meta-analyses and meta-regression models, and analyses of RCT data.  

Organisations

Publications

2025

An experience sampling study exploring associations between contextual factors and prolonged grief reactions in daily life (2025)Scientific reports, 15. Article 39410. Pociūnaitė-Ott, J., Kraiss, J., van Eersel, J. H. W., Franzen, M. & Lenferink, L. I. M.https://doi.org/10.1038/s41598-025-23122-8Nature-Based Contemplation for Spiritual Well-Being: A Pilot Study Exploring Acceptability and Potential Benefits (2025)Mindfulness, 16(11), 3212-3225. Ruan, X., Kraiss, J., Tönis, K. J. M., Cebolla, A., Lenferink, L. I. M., van Rompay, T. & Bohlmeijer, E.https://doi.org/10.1007/s12671-025-02686-6Can a positive psychology intervention cultivating self-compassion enhance mental health by fostering self-compassion and adaptive capacities? Results from a randomized controlled trial (2025)The Journal of positive psychology (E-pub ahead of print/First online). Wang, J., Tönis, K. J. M., Kraiss, J. T., Drossaert, C. H. C., Schroevers, M. J. & Bohlmeijer, E. T.https://doi.org/10.1080/17439760.2025.2568840Exploring Compassion-Based Positive Psychology for Cardiac Recovery: A Mixed Methods Case Study (2025)International Journal of Applied Positive Psychology, 10(3). Article 53. Tönis, K., Kraiss, J. T., Toivonen, H., Linssen, G. C. & Bohlmeijer, E. T.https://doi.org/10.1007/s41042-025-00247-9What Makes Mindfulness-Based Stress Reduction Programs Effective Among Dutch Elementary School Teachers? The Mediating Role of Mindfulness Skills, Self-Compassion, Emotion Regulation, and Teacher Self-Efficacy (2025)Mindfulness, 16(9), 2699-2711. Rombouts, M., Lensen, J. H., Kraiss, J. T., Duinhof, E. L., Monshouwer, K., Stoltz, S. E. M. J., Scholte, R. H. J., Speckens, A. E. M. & Kleinjan, M.https://doi.org/10.1007/s12671-025-02662-0Trial-based economic evaluation of a multicomponent positive psychology intervention for euthymic patients with bipolar disorder (2025)Journal of Affective Disorders, 379, 576-585. Kleijburg, A., Klein, F., Wijnen, B., Lokkerbol, J., ten Klooster, P. M., Bohlmeijer, E. T. & Kraiss, J. T.https://doi.org/10.1016/j.jad.2025.02.112Psychometric evaluation of a brief self-report measure and of EMA items assessing the suicide crisis syndrome: Insights on reliability, validity and temporal variability (2025)Psychiatry research, 348. Article 116504. Spangenberg, L., Kraiss, J., Friedrich, M., Forkmann, T., Böhler, L., Strauss, M., Stengler, K., Serebriakova, J., Eimen, J., Teismann, T., Melzer, L. & Glaesmer, H.https://doi.org/10.1016/j.psychres.2025.116504A school-based program to prevent depressive symptoms and strengthen well-being among pre-vocational students (Happy Lessons): Results of a randomized controlled trial (2025)Mental Health & Prevention, 37. Article 200398. Rombouts, M., Monshouwer, K., Duinhof, E. L., Kraiss, J. T., Shields-Zeeman, L. & Kleinjan, M.https://doi.org/10.1016/j.mhp.2025.200398

2024

Examining heterogeneity in the affect-regulating function of suicidal ideation: Person-specific analyses in male inpatients with depression (2024)Suicide and Life-Threatening Behavior, 54(6), 1123-1132. Hallensleben, N., Kraiss, J. T., Glaesmer, H., Forkmann, T. & Spangenberg, L.https://doi.org/10.1111/sltb.13117Exploring the Benefits and Acceptance of Blended Positive Psychotherapy as an Adjunctive Treatment for Clients with Residual Depressive Symptoms: A Mixed-Method Study (2024)Journal of contemporary psychotherapy, 54(4), 315-325. Vergeer-Hagoort, F., Kraiss, J. T., Drossaert, C. H. C. & Bohlmeijer, E. T.https://doi.org/10.1007/s10879-024-09623-z

Research profiles

Address

University of Twente

Capitool 15 (building no. 78), room 241
Capitool 15
7521 PL Enschede
Netherlands

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University of Twente

Cubicus (building no. 41)
De Zul 10
7522 NJ Enschede
Netherlands

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University of Twente

Cubicus (building no. 41), room B127A
De Zul 10
7522 NJ Enschede
Netherlands

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