Measurement invariance of the New Sexual Satisfaction Scale short form

Abstract

The objective was to assess the incremental validity, internal consistency and temporal stability of the New Sexual Satisfaction Scale short version (NSSS-S) in Spanish-speaking Latino adults. The sample included 401 university students (232 women and 169 men), sexually active, 18 to 38 years old (M = 20.83; SD = 2.66). A subsample of 76 participants answered the scale four weeks after the first application. Confirmatory factor analysis (CFA) identified a two-factor structure. The invariance analysis with multigroup confirmatory factor analysis (MGCFA) confirmed the invariance by sex of the scale. The internal consistency reliability of the scale and its subscales was excellent for both men and women (ω = .89 - .95) and the temporal stability, four weeks after the first application, was adequate (r = .74; ICC = .85). Finally, men scored higher in overall sexual satisfaction and the Ego-Centered subscale, but not in the Partner -and Sexual Activity-Centered subscale, as compared to women. To conclude, the NSSS-S is a psychometrically appropriate scale to measure sexual satisfaction in Spanish-speaking Latino adults.