We, the participants at Salzburg Global’s session on Untapped Talent: Can better testing and data accelerate creativity in learning and societies? (December 12 to 17, 2015), urge all key stakeholders in the integrated education system to join together to help to address the following challenge: How can we accelerate demand for improved assessment and use of data to progress toward more equitable and personalized education systems that value a wide range of goals and benefit all learners and society?