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Print version ISSN 2411-5940On-line version ISSN 2413-4465


HUAMANI-CAHUA, Julio Cesar et al. Validation Psychometrical analysis of Sexual Machism Scale (EMS-Sexism-12) among university students from Arequipa, Peru. Interacciones [online]. 2023, vol.9, pp.e301-.  Epub Mar 23, 2023. ISSN 2411-5940.


Sexual masochism is a form of gender discrimination based on beliefs, stereotypes and attitudes that limit autonomy and devalue individuals based on their gender.


To determine the internal structure validity and reliability of the EMS-Sexism-12 to measure sexual machismo in the Peruvian population.


The study used an instrumental design with a convenience sample of 2470 students from a public university in Arequipa, Peru. The sample consisted of 50% men (M = 20.53; SD = 2.64) and 50% women (M = 19.95; SD = 2.27), representing engineering and social science disciplines. The instrument used was the Sexual Machismo Scale (EMS-Sexism-12), originally constructed and validated in Mexico.


The data were analysed using CFA and the WLSMV estimator along with polychoric correlation matrices in the open-source software Rstudio. The analysis revealed a unidimensional model with good fit indices for both men (CFI = .924, TLI = .907, SMRM = 0.069) and women (CFI = .936, TLI = .922, SMRM = 0.051). Furthermore, evidence of internal consistency reliability was observed for men and women, respectively (ω = .969; ω = .897). Gender-specific norms are included for reference.


The sexual machismo scale shows evidence of similar validity and reliability with the same items in men and women from Arequipa, Peru.

Keywords : Sexual Machismo; Sexism; Sexuality; Psychometrics.

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