Inventory of Interpersonal Problems-32 (IIP-32): Psychometric properties and normative data in a clinical sample from Argentina

GÓMEZ-PENEDO, J. M.; FERNÁNDEZ-ALVAREZ, J. ; MARISTANY, M.; FREIBERG HOFFMANN, A.

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Universidad Nacional de Córdoba

Lugar: Cordoba; Año: 2022 vol. 22 p. 64 - 75

1667-4545

This study analyzes the psychometric properties of the Inventory of Interpersonal Problems-32 (IIP-32), the most widely used instrument to measure relational difficulties. A sample of 2128 participants completed the IIP-32 and two additional measuresof interpersonal difficulties before starting a psychotherapy treatment. To evaluate reliability, we analyzed internal consistency and item homogeneity. We analyzed the construct validity of IIP-32 through a confirmatory factor analysis and the concurrentvalidity through correlations between the IIP-32 and other measures of interpersonal deficits. The results of the study show excellent internal consistency and homogeneity of the items in the IIP-32. Furthermore, the results show construct validity as well as concurrent validity of the instrument. In sum, the results of this paper rank the IIP-32 as a reliable and valid instrument with important clinical implications to measure interpersonal difficultiesin Argentina.