A model of ethical practice is proposed to improve Personnel Selection in Merit and Competitive Examinations in the public sector of Ecuador, with a predictive, prospective, transectional and explanatory methodological design. The level of perception of ethical practices in personnel selection processes in the public sector is mostly medium-low and a high level with respect to a perception of the possibility of improving the selection process through actions characterized by ethics. The influence of ethical practices on selection processes is explained, establishing nine practices characteristic of ethics applicable to the development of selection processes. The model proposed is based on ethical practices derived from the dimension that obtained the highest score analyzed, management.