Psychometric Characteristics of Sexual Intelligence Scale (SIS) And its relationship with Sexual Satisfaction and Marital Intimacy

Document Type : علمی - پژوهشی

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1 Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran

2 university of Mohaghegh Ardabili

Abstract

The study aimed to evaluate the psychometric properties of the Sexual Intelligence Scale (SIS) and its relationship with sexual satisfaction and marital intimacy. This descriptive-correlational research involved 380 students from Tabriz University, selected based on the Krejcie-Morgan sample size table using available sampling. Instruments included the SIS, Index of Sexual Satisfaction (ISS), and Marital Intimacy Scale (MIS). Data were analyzed using SPSS-23 and AMOS-24 through correlation and confirmatory factor analysis (CFA). CFA supported a two-factor model of SIS, comprising sexual knowledge and sexual behavior. The scale showed strong convergent validity with sexual satisfaction (R=0.89) and marital intimacy (R=0.88). Predictive validity analysis indicated SIS effectively predicts sexual satisfaction (R²=0.80) and marital intimacy (R²=0.78). Reliability was excellent, with Cronbach’s alpha at 0.93 and test-retest reliability at 0.92. The findings suggest the Sexual Intelligence Scale is a valid and reliable tool with strong psychometric adequacy for assessing sexual intelligence, and it can effectively predict sexual satisfaction and marital intimacy

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