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 Measuring Socio-Emotional Skill, Impact, and Equity Outcomes November 15, 2021 QTurn 101 – Outcome Measures May 2, 2023 Quality in the out-of-school time sector: Insights from the Youth PQA validation study January 1, 2006