Sexual satisfaction is an important indicator of sexual health, however, its definition is not consensual. Lawrence and Byers (1995) developed a conceptual model of sexual satisfaction for people in committed relationships and, within this model, the authors developed the Global Measure of Sexual Satisfaction (GMSEX) which assesses global sexual satisfaction in the context of an intimate relationship. In the present study we aimed to adapt and assess the psychometric properties of this scale with three distinct samples from the Portuguese population in cohabitation relationships. One was designated as "normative group" with no diagnosis and perception of sexual problems (n = 291), another called "clinical group", whose participants presented sexual problems (n = 84), and an "online" sample of participants with and without perception of sexual problems (n = 760). The scale proved to have a single factor structure as well as good reliability and validity.
Sexual satisfaction; sexual health; cohabitation; instrument validation
