PETRA conducts scientific research into how psychological complaints manifest themselves in daily life. But also how we can improve the quality of care, and which treatment works best for whom. If you participate in PETRA, we ask your permission to do this research. Download more information below about what kind of research we do and how long we keep your data.

PETRA is based on scientific research on the utility of personalized diaries for clinical practice. Find relevant publications of the PETRA team below.





The development of PETRA is discussed in the preprint below:


Riese , H., Wichers, M. (2021). Comment on: Eronen, M.I. (2019). The levels problem in psychopathology. Psychological Medicine, 51(3), 525-526.PDF


Riese, H., Zuidersma, M., Bos, F.M. (2020). Comment on: Pavlova, B., and Uher, R. Assessment of psychopathology: Is asking questions good enough? JAMA Psychiatry.

2019 and earlier

Bos, F.M., Snippe, E., Bruggeman, R., Wichers, M., & van der Krieke, L. Insights of patients and clinicians on the promise of the experience sampling method for psychiatric care. Psychiatric Services, 2019, 70(11), 983-991.PDF