The Validity of the 16-Item Version of the Prodromal Questionnaire (PQ-16) to Screen for Ultra High Risk of Developing Psychosis in the General Help-Seeking Population
ISING, Helga K, WIM VELING, DER GAAG, Mark Van, LOEWY, Rachel L, RIETVELD, Marleen W, RIETDIJK, Judith, DRAGT, Sara, KLAASSEN, Rianne M. C, NIEMAN, Dorien H, WUNDERINK, Lex, LINSZEN, Don H
Published in Schizophrenia bulletin (01.11.2012)
Published in Schizophrenia bulletin (01.11.2012)
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Cognitive Behavioral Therapy for Subjects at Ultrahigh Risk for Developing Psychosis: A Randomized Controlled Clinical Trial
VAN DER GAAG, Mark, NIEMAN, Dorien H, RIETDIJK, Judith, DRAGT, Sara, ISING, Helga K, KLAASSEN, Rianne M. C, KOETER, Maarten, CUIJPERS, Pim, WUNDERINK, Lex, LINSZEN, Don H
Published in Schizophrenia bulletin (01.11.2012)
Published in Schizophrenia bulletin (01.11.2012)
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The distribution of self-reported psychotic-like experiences in non-psychotic help-seeking mental health patients in the general population; a factor mixture analysis
Rietdijk, Judith, Fokkema, Marjolein, Stahl, Daniel, Valmaggia, Lucia, Ising, Helga K., Dragt, Sara, Klaassen, Rianne M. C., Nieman, Dorien H., Loewy, Rachel, Cuijpers, Pim, Delespaul, Philippe, Linszen, Don H., van der Gaag, Mark
Published in Social Psychiatry and Psychiatric Epidemiology (01.03.2014)
Published in Social Psychiatry and Psychiatric Epidemiology (01.03.2014)
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Journal Article
Evaluating changes in functioning and psychological distress in visitors of the @ease youth mental health walk-in centres
Boonstra, Anouk, van Amelsvoort, Therese A. M. J., Klaassen, Rianne M. C., Popma, Arne, Grootendorst-van Mil, Nina H., Veling, Wim, de Winter, Remco F. P., Boonstra, Nynke, Leijdesdorff, Sophie M. J.
Published in BJPsych open (03.05.2024)
Published in BJPsych open (03.05.2024)
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Journal Article
Evaluating changes in functioning and psychological distress in visitors of the @ease youth mental health walk-in centres - ERRATUM
Boonstra, Anouk, van Amelsvoort, Therese A M J, Klaassen, Rianne M C, Popma, Arne, Grootendorst-van Mil, Nina H, Veling, Wim, de Winter, Remco F P, Boonstra, Nynke, Leijdesdorff, Sophie M J
Published in BJPsych open (01.05.2024)
Published in BJPsych open (01.05.2024)
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Journal Article
Factor Analysis of the Scale of Prodromal Symptoms: Differentiating between Negative and Depression Symptoms
Klaassen, Rianne M.C., Velthorst, Eva, Nieman, Dorien H., de Haan, Lieuwe, Becker, Hiske E., Dingemans, Peter M., van de Fliert, J. Reinaud, van der Gaag, Mark, Linszen, Don H.
Published in Psychopathology (01.10.2011)
Published in Psychopathology (01.10.2011)
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Psychometric properties of the self-report version of the Quick Inventory of Depressive Symptoms (QIDS-SR₁₆) questionnaire in patients with schizophrenia
Lako, Irene M, Wigman, Johanna T W, Klaassen, Rianne M C, Slooff, Cees J, Taxis, Katja, Bartels-Velthuis, Agna A
Published in BMC psychiatry (03.09.2014)
Published in BMC psychiatry (03.09.2014)
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Four-Year Follow-up of Cognitive Behavioral Therapy in Persons at Ultra-High Risk for Developing Psychosis: The Dutch Early Detection Intervention Evaluation (EDIE-NL) Trial
Ising, Helga K, Kraan, Tamar C, Rietdijk, Judith, Dragt, Sara, Klaassen, Rianne M C, Boonstra, Nynke, Nieman, Dorien H, Willebrands-Mendrik, Monique, van den Berg, David P G, Linszen, Don H, Wunderink, Lex, Veling, Wim, Smit, Filip, van der Gaag, Mark
Published in Schizophrenia bulletin (01.09.2016)
Published in Schizophrenia bulletin (01.09.2016)
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Who is @ease? Visitors’ characteristics and working method of professionally supported peer‐to‐peer youth walk‐in centres, anonymous and free of charge
Leijdesdorff, Sophie M. J., Rosema, Stefanie, Klaassen, Rianne M. C., Popma, Arne, Amelsvoort, Therese
Published in Early intervention in psychiatry (01.12.2022)
Published in Early intervention in psychiatry (01.12.2022)
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Journal Article
Four-Year Cost-effectiveness of Cognitive Behavior Therapy for Preventing First-episode Psychosis: The Dutch Early Detection Intervention Evaluation (EDIE-NL) Trial
Ising, Helga K, Lokkerbol, Joran, Rietdijk, Judith, Dragt, Sara, Klaassen, Rianne M C, Kraan, Tamar, Boonstra, Nynke, Nieman, Dorien H, van den Berg, David P G, Linszen, Don H, Wunderink, Lex, Veling, Wim, Smit, Filip, van der Gaag, Mark
Published in Schizophrenia bulletin (01.03.2017)
Published in Schizophrenia bulletin (01.03.2017)
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COMT Val(158)Met genotype and cannabis use in people with an At Risk Mental State for psychosis: Exploring Gene x Environment interactions
Nieman, Dorien H, Dragt, Sara, van Duin, Esther D A, Denneman, Nadine, Overbeek, Jozefien M, de Haan, Lieuwe, Rietdijk, Judith, Ising, Helga K, Klaassen, Rianne M C, van Amelsvoort, Thérèse, Wunderink, Lex, van der Gaag, Mark, Linszen, Don H
Published in Schizophrenia research (01.07.2016)
Published in Schizophrenia research (01.07.2016)
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The effect of childhood adversity on 4-year outcome in individuals at ultra high risk for psychosis in the Dutch Early Detection Intervention Evaluation (EDIE-NL) Trial
Kraan, Tamar C, Ising, Helga K, Fokkema, Marjolein, Velthorst, Eva, van den Berg, David P.G, Kerkhoven, Margot, Veling, Wim, Smit, Filip, Linszen, Don H, Nieman, Dorien H, Wunderink, Lex, Boonstra, Nynke, Klaassen, Rianne M.C, Dragt, Sara, Rietdijk, Judith, de Haan, Lieuwe, van der Gaag, Mark
Published in Psychiatry research (01.01.2017)
Published in Psychiatry research (01.01.2017)
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Poster #70 ETHNICITY AND BASELINE SYMPTOMATOLOGY IN PATIENTS WITH AN AT RISK MENTAL STATE FOR PSYCHOSIS
Veithorst, Eva, Nieman, Dorien H, Veling, Wim, Klaassen, Rianne M, Dragt, Sara, Rietdijk, Judith, Ising, Helga, Wunderink, Lex, Linszen, Don H, Haan, Lieuwede, van der Gaag, Mark
Published in Schizophrenia research (01.04.2012)
Published in Schizophrenia research (01.04.2012)
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