*The Missouri Student Survey contains hundreds of questions on a variety of topics including depression, use of alcohol and drugs, mental health, bullying experiences, school-based behaviors, and self-injury/suicide. It is important to mention that the schools are instructed to have all 9th graders complete the survey, and to select an additional grade level to survey.  The selection process of this additional grade is not consistent over time or across all St. Charles County schools. The report was developed and implemented by the Missouri Department of Mental Health.