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Factor Structure and Convergent Validity of the Portuguese version of the Inventory of Interpersonal Problems – 32
Published online by Cambridge University Press: 22 December 2020
Abstract
The identification of dysfunctional patterns in individuals’ interpersonal interactions is a cornerstone of psychotherapy. The Inventory of Interpersonal Problems (IIP-32) is one of the most used measures to explore individuals’ interpersonal styles. However, an IIP-32 Portuguese version is missing. Therefore, this study describes a preliminary psychometric study of an IIP-32 Portuguese version in a nonclinical sample. In a cross-sectional correlational design, 250 participants (M age = 20.67, SD = 4.88, males = 33, females = 217) were assessed with self-report questionnaires. Exploratory factor analysis (EFA), convergent, and divergent validities of the IIP-32 were tested with the Interpersonal Reactivity Index (IRI). Relationships with symptomatology were also tested with the Brief Symptom Inventory (BSI-53). The EFA showed a theoretically coherent eight-factor structure. Almost all of the IIP-32 subscales were positively correlated with personal discomfort and with BSI-53 subscales. Vindictive/self-centred, socially inhibited, domineering/controlling and self-sacrificing subscales predicted symptomatology. Promising preliminary psychometric properties were found that may support the IIP-32 as a reliable instrument to assess interpersonal styles. However, more research is required to deepen the analysis of the IIP-32 in the Portuguese population.
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- Copyright © The Author(s), 2020. Published by Cambridge University Press
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