The study goal was to construct and psychometrically validate a negative’s attitudes towards trans people scale (EANT) as an expression of prejudice against trans. Two interdepen- dent sequential studies through questionnaires are reported, both rely on non-probabilistic samples: Study 1, involves 203 participants, mainly college students, addresses the construction and exploratory analysis of the EANT. Study 2, involving 408 participants assigned according to s ociodemographic quotes established by the national census in the general population, shows confirmatory factor analysis and external validation of the scale. A sole factor 9-item instrument, with acceptable internal consistency (α = .886) was obtained. The results suggest good applicability in general population studies. Expected relations with typical variables (ATLG, RWA, SDO and religiosity) were procured.

Se construye y valida psicométricamente una escala de actitudes negativas hacia personas trans (EANT) como expresión del prejuicio hacia las mismas. Se reportan dos estudios secuenciales interdependientes por cuestionarios a partir de muestreos no probabilísticos. El estudio 1, con 203 participantes, en su mayoría estudiantes universitarios, aborda la construcción y análisis exploratorio de la EANT. El estudio 2, con 408 participantes según cuotas sociodemográficas establecidas por el censo nacional en la población general, estudia los análisis factoriales confirmatorios y la validación externa de la escala. Se obtuvo un instrumento unifactorial de 9 ítems, con una consistencia interna aceptable (α = .886) que sugiere una adecuada aplicabilidad en población general, así como relaciones esperables convariables típicas (ATLG, RWA, SDO y religiosidad).

The study goal was to construct and psychometrically validate a negative’s attitudes towards trans people scale (EANT) as an expression of prejudice against trans. Two interdepen- dent sequential studies through questionnaires are reported, both rely on non-probabilistic samples: Study 1, involves 203 participants, mainly college students, addresses the construction and exploratory analysis of the EANT. Study 2, involving 408 participants assigned according to s ociodemographic quotes established by the national census in the general population, shows confirmatory factor analysis and external validation of the scale. A sole factor 9-item instrument, with acceptable internal consistency (? = .886) was obtained. The results suggest good applicability in general population studies. Expected relations with typical variables (ATLG, RWA, SDO and religiosity) were procured.