An Online Cross-Sectional Research Domain Criteria (RDoC) Positive Valence Assessment Study With Patients With a Severe Mental Illness: Methodological Evaluation

Marit Broer   ¹ , MSc ;   Marjolein E A Barendse   ¹ , PhD ;   Laura van den Brink-Steinmann   ¹ , MSc ;   Anne L Snijders   ² , MSc ;   Marisha N Meijer   ¹ , MSc ;   Sofie Paludanus   ^{3, 4, 5} , MSc ;   Monique van der Weijden-Germann   ¹ , PhD ;   Robert M Bilder   ^{6, 7} , PhD ;   Roel Ophoff   ^{6, 8} , PhD ;   Neeltje E M van Haren   ¹ , PhD

¹ Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center, Rotterdam, The Netherlands

² Department of Developmental and Educational Psychology, Institute of Psychology, Leiden University, Leiden, The Netherlands

³ Brain Research and Innovation Centre, Ministry of Defence, Utrecht, The Netherlands

⁴ Department of Psychiatry, Brain Centre, University Medical Centre Utrecht, Utrecht, The Netherlands

⁵ Force Health Protection, Netherlands Armed Forces, Ministry of Defence, Doorn, The Netherlands

⁶ Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA, United States

⁷ Department of Psychology, College of Letters & Science, University of California, Los Angeles, CA, United States

⁸ Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, United States