Personal assessment of intimacy in relationships: Validity and measurement invariance across gender |
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Institution: | 2. Department of Psychology, Université de Montréal, Montréal, QCCanada;3. Department of Gynaecology, KU Leuven, Leuven, Belgium;4. Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium;5. Context—Centre for Couple, Family and Sex Therapy, UPC KU Leuven, Leuven, Belgium;2. Department of Applied Health Science, Indiana University, Bloomington, IN, USA;3. Division of Adolescent Medicine, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA;4. Department of Gender Studies, Indiana University, Bloomington, IN, USA |
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Abstract: | IntroductionIntimacy is central in close relationships and a variety of definitions and instruments exist in scientific literature, making this concept complex to investigate. Furthermore, gender differences were identified in the definition and experience of intimacy.ObjectivesThis study aims to confirm the three-factor structure of the personal assessment of intimacy in relationships (PAIR, Schaefer & Olson, 1981), commonly used in research and marital therapy, developed by Moore et al. (1998) and to examine the measurement equivalence of the scale across gender.MethodA confirmatory factor analysis (CFA) was performed on the responses of 313 women and 251 men in committed relationships in a French population. Measurement equivalence of the scale across gender was then conducted with the best-fitting model.ResultsThe results of CFA and post-hoc analyses revealed that the three-factor model revised with 18 items was the best fit to the data: (1) engagement (10 items), (2) communication (5 items), (3) shared friends (3 items). PAIR-18 displayed a lack of metric and scalar invariance across gender but estimated means of latent variables is not very different between the full invariant model and the unconstraint models.ConclusionNevertheless, consideration of gender differences in the construct of intimacy is very important for theoretical research on intimacy in romantic relationships and for the interventions of marital therapists based on intimacy. |
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Keywords: | Intimacy Couples Confirmatory factor analysis Measurement invariance Scale validation Intimité Couples Analyse factorielle confirmatoire Mesure d’invariance Genre Validation d’échelle |
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