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Validation of the Inventory of Interpersonal Problems (IIP-64): a comparison of Swedish female outpatients with anorexia nervosa or bulimia nervosa and controls
Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden; Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden.
Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden; Praktikertjänst Psychiatry AB, Stockholm, Sweden; School of Medical Sciences, Örebro University, Örebro, Sweden.
Örebro University, School of Medical Sciences. Örebro University Hospital. Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden.
Örebro University, School of Health Sciences. Praktikertjänst Psychiatry AB, Stockholm, Sweden.
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2018 (English)In: Nordic Journal of Psychiatry, ISSN 0803-9488, E-ISSN 1502-4725, p. 1-7Article in journal (Refereed) Epub ahead of print
Abstract [en]

AIM: The aim of the study was to explore the psychometric properties of the Inventory of Interpersonal Problems (IIP-64) and to compare levels of interpersonal distress in Swedish female outpatients with anorexia nervosa or bulimia nervosa with age- and gender-matched controls.

METHODS: Totally, 401 participants were included; anorexia nervosa (n = 74), bulimia nervosa (n = 85) and controls (n = 242). All participants completed the IIP-64. The eating disorder (ED) patients also filled out the Eating Disorder Inventory-2/3 (EDI).

RESULTS: Internal consistency of IIP-64 was acceptable to high. Principal component analyses with varimax rotation of the IIP-64 subscales confirmed the circumplex structure with two underlying orthogonal dimensions; affiliation and dominance. Significant correlations between EDI-3 composite scales ineffectiveness and interpersonal problems and IIP-64 were found. ED patients reported higher levels of interpersonal distress than controls on all but one subscale (intrusive/needy).

CONCLUSIONS: IIP-64 can be considered to have acceptable to good reliability and validity in a Swedish ED sample. IIP-64 can be a useful complement in assessment of interpersonal problems in ED.

Place, publisher, year, edition, pages
Taylor & Francis, 2018. p. 1-7
Keywords [en]
Anorexia nervosa, IIP-64, bulimia nervosa, inventory of interpersonal problems, psychometrics
National Category
Psychiatry
Identifiers
URN: urn:nbn:se:oru:diva-66873DOI: 10.1080/08039488.2018.1465589PubMedID: 29703121OAI: oai:DiVA.org:oru-66873DiVA, id: diva2:1209675
Available from: 2018-05-23 Created: 2018-05-23 Last updated: 2018-05-23Bibliographically approved

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Gustafsson, Sanna AilaNyman-Carlsson, Erika

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