1. Clinical center of excellence for older adults with personality disorders, Mondriaan Mental Health Center, Heerlen-Maastricht, The Netherlands
2. Faculty of Psychology & Educational Sciences, Department of Psychology, Personality and Psychopathology Research Group (PEPS), Vrije Universiteit Brussel (VUB), Brussels, Belgium
3. Department of Psychiatry, Altrecht, Outpatient treatment center for older adults with psychiatric disorders Utrecht, The Netherlands
4. Department of Psychiatry, Section Medical Psychology and Psychotherapy, Erasmus Medical Center, Rotterdam, the Netherlands
5. Support for Quantitative and Qualitative Research (SQUARE), Vrije Universiteit Brussel (VUB), Core facility of the VUB, Brussels, Belgium
6. Biostatistics and Medical Informatics Research Group, Vrije Universiteit Brussel (VUB), Brussels, Belgium
7. Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience; School for Mental Health and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
8. Department of Medical and Clinical Psychology, Tilburg University, Tilburg, The Netherlands