The study aimed to explore the psychometric properties of research competency scales published in the scientific literature in seven databases: Scopus, Web Of Science, ERIC, Embase, EBSCO, PubMed and SciELO between 2014 and June 2023. Thirteen papers were systematized, where 11 scales were found that measured content validity using indexes such as the S-CVI, Aiken's V and item-test correlations. Similarly, the results of the exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) presented adequate fit indices such as CFI, GFI, TLI, SRMR and RMSEA, which validated the factor structure. Reliability was mostly evaluated through Cronbach's Alpha coefficient, yielding high and consistent values. In addition, coefficients such as McDonald's Omega, ordinal Omega, Guttman and Spearman Brown have been used, all reflecting a value above .70 and internal consistency in the measure...