RT Article T1 Examining change in adolescent street efficacy and its association with violent outcomes JF Violence and victims VO 31 IS 6 A1 Zimmerman, Gregory M. A1 Messner, Steven F. A2 Messner, Steven F. LA English YR 2016 UL https://krimdok.uni-tuebingen.de/Record/1912545799 DO 10.1891/0886-6708.VV-D-15-00030