1. Department of Long-Term Care, GGZ Drenthe, Assen, Netherlands.
2. University Medical Center Groningen, University of Groningen, Groningen, Netherlands.
3. Department of Clinical & Developmental Neuropsychology and Faculty of Behavioral and Social Sciences, University of Groningen, Groningen, Netherlands.
4. Department of Psychometrics and Statistics, Faculty of Behavioral and Social Sciences, University of Groningen, Groningen, Netherlands.