Nas, C. N., Brugman, D., & Koops, W. (2006). The effects of the equip intervention program on moral development, cognitive distortions and social skills in juvenile delinquents , Kind en Adolescent, 27 (2), 112-127.
A quasi-experimental pretest/posttest study was carried out to investigate the effects of the equip program on moral judgment, social skills, cognitive distortions and social information processing of juvenile delinquents. Participants were recruited from three comparable high security correctional facilities for convicted boys between the ages of 12 and 18. One of these facilities implemented the equip program (n = 31); the other two facilities provided the control group (n= 25). When compared with the control group, the equip group showed a greater reduction of cognitive distortions and a more negative attitude towards delinquent behaviour.