Mary Arnold is a developmental scientist who has led positive youth development program development and evaluation in the OSU Extension 4-H program since 2000.
The 4-H Thriving Model, developed by OSU Extension’s Mary Arnold and now being adopted nationwide, takes the best of youth and adolescent development research and helps us understand what we need to do in our programs to ...
Oregon 4-H uses an active, learn-by-doing approach to help young people see how their actions make a difference in the lives of others and the world around them.