Prevention efforts focused on a population without knowing individual risk.
EXAMPLE: A violence prevention course that is taught to all students in a school, or to an entire grade level.
Prevention efforts focused on those individuals or groups that show one or more risk factors for violence.
EXAMPLE: A weekly workshop designed to teach effective parenting skills to low income, single parents.
Prevention efforts for those who have already demonstrated violent behavior.
EXAMPLE: A series of treatment or counseling sessions for perpetrators of domestic violence.