His primary research areas are learning, self-regulation, and motivational influences on behavior and cognition as these are manifest in education and public health settings. Dr. Shell specializes in multivariate, multidimensional analyses of complex relationships between motivation, classroom factors, self-regulation, and learning. He is primary author of the Unified Learning Model. In addition to his primary research, he has 32 years experience as an evaluator on federal, state, and foundation grands.