El artículo de investigación se centra en identificar la incidencia del uso de redes sociales en el desarrollo de la autoimagen en adolescentes escolarizados en diferentes Instituciones Educativas de Antioquia, Colombia. Mediante un diseño de investigación cuantitativa de tipo descriptivo, con una muestra de ciento diecisiete (117) participantes, se implementaron tres (3) instrumentos: autoinforme ad hoc, cuestionario de adicción a las redes sociales y cuestionario de autoimagen. Como resultado relevante se puede indicar que no se puede generalizar la asociación del uso de las redes sociales y el desarrollo de la autoimagen negativa en adolescentes; la autoimagen no es alterada debido al uso de las plataformas virtuales y en los adolescentes se evidencia la aceptación de ellos mismos. Las condiciones individuales, sociales y familiares determinan estrategias cognitivas protectoras y condicionan el uso funcional de las redes sociales.

Few studies have addressed attitudes toward violence in offender populations using implicit measures. The aim of this study is to test whether implicit attitudes toward two types of violence (physical and relational) differ between two groups of adolescent offenders: one group with conduct disorder (CD; n = 36) and the other group without this condition (No-CD; n = 26). We found that adolescent offenders with CD evidenced less negative implicit attitudes toward physical violence than the No-CD group. No differences between groups were observed in the case of relational violence. Our results suggest that CD modulates implicit attitudes toward violence in adolescent offenders and that the influence of CD is stronger in the case of physical rather than relational acts of violence.

Past research has associated callous-unemotional traits (CU) in young people with serious conduct problems and antisocial behavior. However, whether CU traits influence implicit attitudes toward violence remains largely unexplored. We assess this hypothesis in two independent samples: a sample of youth with no criminal records (Study 1, N = 86), and in a sample of young offenders (Study 2, N = 61). Both groups were not compared due to theoretical (very different demographics) and statistical reasons (the total sample was insufficient to be able to reach the statistical power required in the comparison of both groups). Further, we use an implicit procedure to examine whether CU traits modulate wanting for violent stimuli. Across two samples of youth, we found little evidence of an association between CU traits and implicit violent cognition. In youth with no criminal records, implicit attitudes toward violence were related to the unemotional factor of CU traits, but unrelated to other factors and to a global CU traits score. CU traits were not associated with implicit attitudes toward violence in young offenders. The latter finding was mirrored in the implicit wanting task. Overall, our findings cast some doubts on the adequacy of implicit measures to assess implicit violent cognition in youth with CU traits. We discuss potential methodological limitations of this research (e.g., characteristics of the sample and performance in the implicit procedures) that may impact our results.

El trastorno de conducta grave es un notable problema social y de salud mental en población infantil y adolescente. Aquí se presentan los resultados de una investigación cuantitativa de nivel descriptivo, que tuvo como objetivo general realizar una caracterización de la agresividad en un grupo de adolescentes con este tipo de trastorno. El estudio se desarrolló con jóvenes de un centro de internamiento preventivo que se encontraban en proceso de judicialización, aún no sancionados, pero privados de la libertad. Se seleccionaron por conveniencia 115 hombres, a los que se les aplicaron cinco instrumentos de medición: el Inventario de Motivos para la Agresión, el Inventario de Situaciones y Comportamientos Agresivos, el Cuestionario de Agresión de Buss-Perry, el Cuestionario de Agresividad Proactiva y Reactiva, y la Escala de Agresividad Apetitiva. El principal motivo para la agresión era conseguir algo que querían, eran agresivos sin que hubiese algún motivo, expresaban frecuentemente su ira, amenazaban a personas conocidas, se enojaban cuando tenían desacuerdos, creían que los demás se burlaban de ellos a sus espaldas, se sentían bien después de agredir física o verbalmente a alguien, portaban armas para usarlas en peleas y consideraban que pelear era lo único que querían hacer en la vida.

(analytical)Research on aggressiveness among young offenders is insufficient in Colombia and, consequently, there is not enough information on gender differences related to aggression for this population. Failure to evaluate and intervene with this behavior using a gender perspective negatively impacts the effectiveness of criminal policies. A total of 1050 young offenders, selected based on ease of access,participated in this research study. The population consisted of 855 males and 195 females between14 and 19 years of age living in Medellín. The main results were: 1) there were very high levels ofproactive, reactive and total aggressiveness in adolescent offenders; 2) there were differences inproactive aggressiveness and total aggressiveness in females compared to males; and 3) levels of aggressiveness varied depending on certain sociodemographic and crime-associated variables. Keywords: Juvenile delinquency; domestic violence; psychotropic drugs; aggressiveness; adolescents; sex offenses.

This study analyzed the factor solutions of the Mechanisms of Moral Disengagement Scale (MMDS) and their relationship with antisocial and delinquent behaviors in 844 justice-involved youth (M = 17.82 years, SD = 1.94) undergoing legal proceedings in the Colombian JuvenileCriminal Responsibility System. Participants were administered a validated Colombian version of the moral disengagement scale. Results showed thatthe one-, three-, four-, and eight-factor models had good goodness-of-fit indicators and acceptable internal consistency indices. However, the eightfactorstructure demonstrated a superior fit to the others when the fit indices of the proposed structural models were compared. The eight-factor structure also demonstrated acceptable internal consistency and directcorrelations between the factors and antisocial and criminal behaviors. These findings support that the scale is a reliable and valid measure of moral disengagement in justice-involved youth in the Colombian context