Psychometric of the Ferrer-Urbina multidimensional scale of sexual self concept (MSSSC) in the Iranian population

The Ferrer-Urbina’s Multidimensional Scale of Sexual Self-Concept is newly designed and consists of an appropriate number of items. This scale has not been previously utilized in Iran. Thus, the present study aimed to evaluate the validity and reliability of its Persian version in Iran. This cross-sectional psychometric validation study was conducted in 2025 on 160 married men and women living in Urmia. The content validity was assessed quantitatively and qualitatively. Also, Convergent validity was performed by calculating the correlation coefficient between the Snell and MSSSC sexual self-concept questionnaires. Confirmatory factor analysis was employed to determine the construct validity. The reliability of the questionnaire was also tested using the internal consistency method, along with calculating the Cronbach's alpha coefficient. Data were analyzed using IBM SPSS (v.27) and MPLUS (v.4), with a significance level set at p < 0.05. The factor loadings for 16 items were calculated between (0.99–0.4), indicating a good correlation between the items, so there was no need to remove any items. Cronbach's alpha and McDonald's omega coefficients were estimated for the entire scale (α = 0.949, ώ = 0.948) as well as its dimensions. CFA confirmed excellent model fit (CFI = 0.987, TLI = 0.984, RMSEA = 0.057.90% Cl [0.081,0.112]). The reliability of this scale was examined using the test–retest method and the Cronbach's alpha value was 0.946. The Persian version of the Ferrer-Urbina Multifaceted Sexual Self-Concept Questionnaire with 16 items is psychometrically sound, culturally valid tool for assessing sexual self-concept in Iran.