<p>Felipe Vilanova</p><p>Universidade Federal do Rio Grande do Sul (UFRGS)</p><p>Address: Rua Ramiro Barcelos, 2600. Rio Branco. 90035003. Porto Alegre, RS, Brazil.</p><p>Email: <a href="mailto:felipevilanova2@gmail.com">felipevilanova2@gmail.com</a></p><p><strong>Author names and affiliations: </strong>Felipe Vilanova<sup>1,2</sup>; Diogo Araújo DeSousa³; Silvia Helena Koller<sup>1</sup>; Ângelo Brandelli Costa<sup>1,2</sup></p><ol><li>Center for Psychological Studies on At-Risk Populations (CEP-Rua), Institute of Psychology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil</li><li>Prejudice, Vulnerability and Psychosocial Processes Laboratory, Psychology Post-Graduation Program, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil  </li><li>Laboratory of Assessment and Measurement in Psychology (LAMP), Universidade Tiradentes, Aracaju, SE, Brazil.</li></ol><p> </p><p> </p><p>Dr. Rivera</p><p>Editor</p><p><em>Interamerican Journal of Psychology</em></p><p> </p><p>Dear Dr. Rivera</p><p>Research regarding political attitudes often investigate trust in government or in politicians as well as its political effects. However, this is a construct that makes more sense to be analyzed in Northern-American or Western-European countries, since they do not constantly undergo political crises as in Latin-American, Eastern-European or African countries – for example. These political crises are usually combatted with ineffective measures and make room for individuals to radically reject the political class, turning the distrust in politicians into authoritarian attitudes against politicians. In these situations, investigating only trust may be simplistic, since the authoritarian attitudes against politicians that may arise posit even more serious threats to the political system. Therefore, in the present manuscript we developed a psychometrically valid instrument capable of assessing authoritarianism against politicians and also the tendency to submit and contest them. Hence, I am pleased to submit the original research article entitled “Development of a Psychometrically Valid Instrument to Assess Authoritarianism Against Politicians” by Felipe Vilanova, Diogo Araújo DeSousa, Silvia Helena Koller, and Ângelo Brandelli Costa for consideration for publication in <em>Interamerican Journal of Psychology</em>.</p><p>To the best of our knowledge, this is the first instrument that seeks to measure authoritarianism against politicians. It presented good psychometric properties and can thus be used in the future to assess authoritarianism against politicians. An evaluation of the items agreement rate revealed that it successfully assesses widespread authoritarian attitudes towards politicians.</p><p>This manuscript has not been published and is not under consideration for publication elsewhere. We have no conflicts of interest to disclose.</p><p>Thank for your consideration,</p><p>Sincerely</p><p>Felipe Vilanova, Diogo Araújo DeSousa, Silvia Helena Koller, Ângelo Brandelli Costa</p>