From: Design and validation of a self-administered test to assess bullying (bull-M) in high school Mexicans: a pilot study
Bull-M
Bull-S
Never
3.5%
3.8%
Rarely
17.6%
42.9%
Sometimes
31.7%
Twice a week
35.3%
Often
27.6%
Everyday
19.6%
17.1%