The BASC-2 is a behavioral assessment system for children between ages 2-25 developed by Cecil Reynolds and Randy Kamphaus. It is a multi-method, multi-dimensional system that measures both positive and negative behavioral dimensions through rating scales completed by parents, teachers, and self-reports. It can help with clinical diagnosis of childhood disorders and educational classification. When administered, the BASC-2 provides information through components like rating scales and a structured developmental history to evaluate a child's behavioral and emotional functioning.