Development and validation of a Manic Thought Inventory
Bipolar Disorders, vol. 25, pp. 564–570
Abstract
OBJECTIVE: This article describes the development and psychometric evaluation of the Manic Thought Inventory (MTI), a patient-driven self-report inventory to assess the presence of typical (hypo)manic cognitions. METHODS: The initial item pool was generated by patients with bipolar disorder (BD) type I and assessed for suitability by five psychiatrists specialized in treating BD. Study 1 describes the item analysis and exploratory factor structure of the MTI in a sample of 251 patients with BD type I. In study 2, the factor structure was validated with confirmatory factor analysis, and convergent and divergent validity were assessed in an independent sample of 201 patients with BD type I. RESULTS: Study 1 resulted in a 50-item version of the MTI measuring one underlying factor. Study 2 confirmed the essentially unidimensional underlying construct in a 47-item version of the MTI. Internal consistency of the 47-item version of the MTI was excellent (α = 0.97). The MTI showed moderate to large positive correlations with other measures related to mania. It was not correlated with measures of depression. CONCLUSION: The MTI showed good psychometric properties and can be useful in research and clinical practice. Patients could use the MTI to select items that they recognize as being characteristic of their (hypo)manic episodes. By monitoring and challenging these items, the MTI could augment current psychological interventions for BD.
Authors 11
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Imke Hanssen corresponding
Radboud University Nijmegen · Radboud University Medical Center · Donders Institute for Brain, Cognition and Behaviour
Affiliation as printed
Department of Psychiatry, Center for Mindfulness Radboud University Medical Center Nijmegen The Netherlands
Donders Institute for Brain, Cognition, and Behaviour Radboud University Nijmegen The Netherlands
Department of Psychiatry, Center for Mindfulness, Radboud University Medical Center, Nijmegen, The Netherlands
Donders Institute for Brain, Cognition, and Behaviour, Radboud University, Nijmegen, The Netherlands
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Affiliation as printed
Faculty of Behavioural, Management, and Social Sciences University of Twente Enschede The Netherlands
Faculty of Behavioural, Management, and Social Sciences, University of Twente, Enschede, The Netherlands
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Radboud University Nijmegen · Radboud University Medical Center · Donders Institute for Brain, Cognition and Behaviour
Affiliation as printed
Department of Psychiatry, Center for Mindfulness Radboud University Medical Center Nijmegen The Netherlands
Donders Institute for Brain, Cognition, and Behaviour Radboud University Nijmegen The Netherlands
Department of Psychiatry, Center for Mindfulness, Radboud University Medical Center, Nijmegen, The Netherlands
Donders Institute for Brain, Cognition, and Behaviour, Radboud University, Nijmegen, The Netherlands
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Radboud University Nijmegen · Pro Persona · Donders Institute for Brain, Cognition and Behaviour
Affiliation as printed
Donders Institute for Brain, Cognition, and Behaviour Radboud University Nijmegen The Netherlands
Pro Persona Mental Health Care Outpatient clinic for Bipolar Disorders Nijmegen The Netherlands
Donders Institute for Brain, Cognition, and Behaviour, Radboud University, Nijmegen, The Netherlands
Pro Persona Mental Health Care, Outpatient clinic for Bipolar Disorders, Nijmegen, The Netherlands
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Elvira Boere Aachen Department of Psychiatry Leiden University Medical Center Leiden The Netherlands Department of Psychiatry, Leiden University Medical Center
Leiden University Medical Center · PsyQ
Affiliation as printed
Department of Psychiatry Leiden University Medical Center Leiden The Netherlands
PsyQ Department of Mood Disorders Rotterdam The Netherlands
Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands
PsyQ Department of Mood Disorders, Rotterdam, The Netherlands
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Affiliation as printed
PsyQ Department of Mood Disorders The Hague The Netherlands
PsyQ Department of Mood Disorders, The Hague, The Netherlands
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Dimence · University of Twente
Affiliation as printed
Dimence Mental Health Center for Bipolar Disorders Deventer The Netherlands
Faculty of Behavioural, Management, and Social Sciences University of Twente Enschede The Netherlands
Dimence Mental Health, Center for Bipolar Disorders, Deventer, The Netherlands
Faculty of Behavioural, Management, and Social Sciences, University of Twente, Enschede, The Netherlands
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Affiliation as printed
Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University University Centre for Nursing and Midwifery Ghent Belgium
Dimence Mental Health Center for Bipolar Disorders Deventer The Netherlands
Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, University Centre for Nursing and Midwifery, Ghent, Belgium
Dimence Mental Health, Center for Bipolar Disorders, Deventer, The Netherlands
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Amsterdam University Medical Centers · Vrije Universiteit Amsterdam · Amsterdam UMC Location Vrije Universiteit Amsterdam · University of Twente
Affiliation as printed
Department of Psychiatry, Amsterdam University Medical Center Vrije Universiteit Amsterdam The Netherlands
Faculty of Behavioural, Management, and Social Sciences University of Twente Enschede The Netherlands
Department of Psychiatry, Amsterdam University Medical Center, Vrije Universiteit, Amsterdam, The Netherlands
Faculty of Behavioural, Management, and Social Sciences, University of Twente, Enschede, The Netherlands
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Radboud University Nijmegen · Radboud University Medical Center · Donders Institute for Brain, Cognition and Behaviour
Affiliation as printed
Department of Psychiatry, Center for Mindfulness Radboud University Medical Center Nijmegen The Netherlands
Donders Institute for Brain, Cognition, and Behaviour Radboud University Nijmegen The Netherlands
Department of Psychiatry, Center for Mindfulness, Radboud University Medical Center, Nijmegen, The Netherlands
Donders Institute for Brain, Cognition, and Behaviour, Radboud University, Nijmegen, The Netherlands
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Affiliation as printed
Altrecht Institute for Mental Health Care Outpatient clinic for Bipolar Disorders Utrecht The Netherlands
Altrecht Institute for Mental Health Care, Outpatient clinic for Bipolar Disorders, Utrecht, The Netherlands
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