RESUMEN
The present research brings psychometric evidences for the Unidimensional Relationship Closeness Scale (URCS), aiming at verifying its adequacy for use in the Brazilian context. Participants were 468 university students with mean age of 21.2 years. They completed a survey composed by the URCS, the Basic Values Survey (BSV), and demographic questions. Through Exploratory (Eigenvalue = 6.61) and Confirmatory Factor Analysis (CFI = .937, TLI = .923), the results showed that the same one-factor structure from the original version of the scale was found. These results were also invariant across gender and relationship status (∆SRMR < .03), and presented evidences of internal consistence (α = .94), temporal stability (ICC = .903, p < .001), and convergent validity (r male = .32, r female = .25, p < .001). In conclusion, this measure has shown to be psychometrically adequate for use in Brazil.