“…The lack of overall improvement in primary and secondary outcomes as a result of DCD participation is consistent with the results of two RCT’s on DTPs for youth offenders that did not find positive program effects in externalizing behavioral problems ( Seivert et al, 2016 ) and in psychosocial functioning (i.e., self-esteem, empathy, optimism, pessimism, compassion, and social competence; Grommon et al, 2018 ; Seivert et al, 2016 ). This is in contrast with previous research in adults, that did demonstrate positive overall effects for DTPs in primary (i.e., infractions, externalizing behavior problems; e.g., Cooke & Farrington, 2016 ; van Wormer et al., 2017 ) and secondary outcomes, such as social-emotional (e.g., Cooke, 2014 ) and therapeutic (e.g., Fournier et al., 2007 ) functioning.…”