Oklahoma afterschool improvement process: Evaluation of 5 year trajectories REQUEST ACCESS This paper describes validity of QIS performance measures and longitudinal change over four years in Oklahoma 21st CCLC programs. You Might Also Like Bringing in the community: Partnerships and quality assurance in 21st century community learning center January 6, 2008 Quality accountability in the out of school time sector November 17, 2012 QTurn 101 – Outcome Measures May 2, 2023