In the context of tiered support framework (MTSS) implemented in primary schools (and Kita/preschool), Germany, we are exploring tools that are helpful for research children's behavior in the age 5 to 7. Has anyone had experience using child self-report DBRs for domains such as well-being, fear, anger, or related constructs in this age group? We are curious to learn about tools that have proven feasible, valid, and informative when applied from the child’s perspective.