Basic moral sensitivity, moral disengagement, and defender self-efficacy as predictors of students' self-reported bystander behaviors over a school year: a growth curve analysis.

Though school children tend to view peer victimization as morally wrong most do not to intervene on the victim's behalf and some instead choose to aid the victimizer. The aim of this longitudinal study was to investigate how students' defending and pro-aggressive bystander behaviors evolved over the course of one school year and their association to basic moral sensitivity, moral disengagement, and defender self-efficacy. Three-hundred-fifty-three upper elementary school students (55% girls; 9.