RT Article T1 School-based prevention of problem behaviors: a meta-analysis JF Journal of quantitative criminology VO 17 IS 3 SP 247 OP 272 A1 Wilson, David B. 1961- A2 Gottfredson, Denise C. A2 Najaka, Stacy Brooke LA English YR 2001 UL https://krimdok.uni-tuebingen.de/Record/163968218X K1 Prävention K1 Delinquenz K1 Schule K1 Drogenkonsum K1 Verhaltensstörung K1 Methodenfragen K1 Metaanalyse