Dunst, Carl, and Deborah Hamby. “Predictors of the Social Validity Judgments of Early Childhood Intervention Performance Checklists and Practice Guides”. International Journal of Psychology and Educational Studies 4, no. 1 (January 1, 2017): 13–20. Accessed October 6, 2024. https://ijpes.com/index.php/ijpes/article/view/30.