Validation of the Inventory of Interpersonal Problems (IIP-64): a comparison of Swedish female outpatients with anorexia nervosa or bulimia nervosa and controlsShow others and affiliations
2018 (English)In: Nordic Journal of Psychiatry, ISSN 0803-9488, E-ISSN 1502-4725, Vol. 72, no 5, p. 347-353Article in journal (Refereed) Published
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. Vol. 72, no 5, p. 347-353
Keywords [en]
Anorexia nervosa, IIP-64, bulimia nervosa, inventory of interpersonal problems, psychometrics
National Category
Psychiatry
Identifiers
URN: urn:nbn:se:oru:diva-66873DOI: 10.1080/08039488.2018.1465589ISI: 000440750600005PubMedID: 29703121Scopus ID: 2-s2.0-85046027153OAI: oai:DiVA.org:oru-66873DiVA, id: diva2:1209675
Note
Funding Agency:
Stockholm County Council 20150170 20160063
2018-05-232018-05-232022-08-24Bibliographically approved