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 Quality-outcomes study for Seattle Public Schools summer programs, 2016 program cycle January 1, 2016 Quality accountability in the out of school time sector November 17, 2012 Continuous quality improvement in afterschool settings: Impact findings from the Youth Program Quality Intervention study January 1, 2012