The California Dept. of Education describes the California Healthy Kids Survey (CHKS) as "an anonymous, confidential survey of school climate and safety, student wellness, and youth resiliency. It is administered to students at grades 5, 7, 9, and 11. It enables schools and communities to collect and analyze data regarding local youth health risks and behaviors, school connectedness, school climate, protective factors, and school violence. The CHKS is part of a comprehensive data-driven decision-making process on improving school climate and student learning environment for overall school improvements."