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4. Arnold, M. E., & Cater, M. (2016). Program theory and quality matter: Changing the course of Extension program evaluation. Journal of Extension, 54(1), Article 1FEA1. Retrieved from http://www.joe.org/joe/2016february/a1.php
5. Arnold, M. E., Nott, B. D., & Meinhold, J. L. (2012). The Positive Youth Development Inventory (PYDI). Corvallis, OR: Oregon State University 4-H Youth Development Program.