Temporal stability and cross-national consistency of the dimensional structure of the Sexual Attraction Questionnaire (SAQ)

The Sexual Attraction Questionnaire (SAQ) was designed to measure sexual attraction (Fernández, Quiroga, & Rodríguez, 2006), because the current questionnaires were considered inadequate. The purpose of this research was to test whether the SAQ factors remain meaningful after several years (stability) and whether the Italian version is equivalent to the Spanish one (consistency). Three groups of university students participated: two from Spain (n = 182 and 255, respectively) and one from Italy (n = 293). The Spanish groups were tested with a 7-year interval (2001-2008). The Italian group was tested in 2008. The main hypotheses were to test, across time interval and countries: (a) factor congruence, (b) predictive power of factors (proportion of variance accounted for), and (c) scale reliability. Sexual attraction typology also was analyzed, within and between countries, to test the validity of the underlying theoretical model. The results obtained show that the SAQ factor structure remains the same, the resulting factors have high predictive power, and the SAQ scales are highly reliable. Sexual dimorphism and sexual attraction typology are highly associated, thus validating the underlying theoretical model.