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Article history: Received: September 18, 2020 Received in revised format: November 18 2020 Accepted: December 12, 2020 Available online: December 15, 2020 The aim of this study was to determine the effectiveness of psychometric tests in the selection of personnel in retail sector jobs. The study used the scientific deductive method of explanatory level, with nonexperimental design on companies in the retail sector in the region of Junín, Peru. The most relevant psychometric tests in the study was the interview whose intention was to go into the life of the interviewee ensuring, suggestions, opinions and behavioral attitudes, knowledge tests to assess the capabilities and skills of the candidate and finally personality tests that allow to know the working relationship, performance, satisfaction and staff turnover. The results generated through structural equations, show that the interview, positively influences the selection of personnel (p<0.05). In relation to knowledge tests based on IQ, the results reveal that it had a positive impact on personnel selection (p<0.05). Finally, personality tests based on psychological traits, significantly influence in personnel selection (p<0.05). The conclusion of the study indicates that the interview, knowledge tests and personality tests in the selection of personnel contribute to the efficiency of the human resources area, thus optimizing the resources of the organization. © 2021 by the authors; licensee Growing Science, Canada