RESUMEN
The ignorance towards the Trans people can cause healthcare providers to assume negative attitudes towards this population. It is relevant to understand with more amplitude the manifestations of stigma towards the Trans population using instruments whose psychometry is adequate. The main objective of the present study was to evaluate the reliability of the Scale of Negative Attitudes towards Trans People (EANT, in Spanish) and its factorial structure in healthcare providers in Puerto Rico. As a secondary objective, differences in attitudes towards Trans people between physical healthcare providers and mental healthcare providers were evaluated. The sample consisted of 67 healthcare providers recruited according to their availability. A point-biserial correlation, a Cronbach's alpha analysis, a Confirmatory Factor Analysis (CFA), and the non-parametric Mann-Whitney test were carried out to examine our objectives. The results confirmed that the EANT has a one-dimensional structure. The Cronbach's alpha internal consistency index of the scale was .75. No significant differences were found in attitudes towards Trans people between physical healthcare providers and mental healthcare providers. Finally, a discussion of the research findings is presented, as well as its limitations and contributions.