Dissocial behaviors precede antisocial personality disorder, which can generate great difficulties for every society, which is why it is important to establish identification mechanisms for this phenomenon to propose prevention mechanisms in educational settings. This study sought to explore the psychometric benefits of the Disocial Behavior Scale in Peruvian adolescents of secondary education, working with a sample of 1000 students aged 15 to 18 years old. A new model of 23 items is proposed with a distribution of three factors, which shows adequate adjustment indices obtained through the confirmatory factor analysis χ2 / gl = 3.36, CFI = 0.94, TLI = 0.93, SRMR = 0.04, RMSEA = 0.05 [95% CI 0.04-0.05], AIC = 69248. The reliability values for the three proposed factors are optimal, Factor 1 (ω =.884), Factor 2 (ω =.845), Factor 3 (ω =.787). It is concluded that the Dissocial Behavior Scale in the proposed version of 23 items with three factors presents adequate psychometric indices.

ECODI-27, Dissocial Behavior, Adolescents, Peruvians, Validity, Reliability.