The Common Core State Standards and accompanying K-12 assessments have recently sparked a fierce national backlash against testing. Sound educational testing and assessment are integral to good teaching and learning in classrooms and necessary for evaluating school performance and assuring quality in education. Rather than throw the baby out with the bathwater, I propose a more considered, "mend, not end" approach to testing, assessment, and accountability in America's schools, with validity at the forefront of the conversation.