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Using a sample of 543 young males from the Juvenile Detention Centers of the Portuguese Ministry of Justice and from schools in the Lisbon region, a group of high psychopathic traits ( n = 281) and a group of low psychopathic traits ( n = 262) were formed based on the Portuguese version of Antisocial Process Screening Device (APSD). Results showed that youths with high psychopathic traits start engaging in criminal activities earlier in life, come into contact with the justice system earlier in life, and have higher levels of conduct disorder, behavior problems, and delinquent behaviors as well as lower levels of self-esteem.<\/jats:p>","DOI":"10.1177\/0306624x12465584","type":"journal-article","created":{"date-parts":[[2012,11,27]],"date-time":"2012-11-27T20:15:20Z","timestamp":1354047320000},"page":"174-189","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":24,"title":["Juvenile Delinquency and Psychopathic Traits"],"prefix":"10.1177","volume":"58","author":[{"given":"Pedro","family":"Pechorro","sequence":"first","affiliation":[{"name":"University of Algarve, Faro, Portugal"}]},{"given":"Rui Abrunhosa","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"University of Minho, Braga, 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