A Large-Scale Replication of the Effectiveness of the KiVa Antibullying Program:A Randomized Controlled Trial in the Netherlands

This study evaluates the effectiveness of the KiVa antibullying program in the Netherlands through a randomized controlled trial of students in grades 3-4 (Dutch grades: 5-6). The sample involved 98 schools who volunteered to participate in the research, with 245 classes and 4,383 students at the baseline (49% girls; M age = 8.7 years), who participated in five measurement waves, collected in three consecutive school years. After the baseline, two thirds of the schools were assigned to the intervention condition (KiVa or KiVa+, the latter included an additional intervention component of networ... Mehr ...