“…The first point analyzed with the bibliographic survey was the response variable. In terms of evaluating student retention policies, as would be expected, most authors start by observing the impact of actions on dropout rates among students (Araújo et al, 2019;Bednar & Guicheva, 2013;Bettinger & Baker, 2014;Bettinger et al, 2012;Bifulco et al, 2019;Braunstein et al, 2000;Castleman & Page, 2016;Cofer & Somers, 2001;Dowd & Coury, 2006;Horn et al, 2014;Macedo & Soares, 2020;Maciel et al, 2017;Martin & Sheckley, 2000;McKinney & Novak, 2013;Mendez et al, 2011;Mendoza et al, 2009;Peng & Fetters, 1978;Qayyum et al, 2019;Rab et al, 2016;Southwell et al, 2018;Torres et al, 2019;Wessel, Bell, McPherson, Costello, & Jones, 2006). The dropout variable is sometimes measured by the authors from negative correlations with different factors: graduation or completion, permanence, or persistence.…”