Thomas Lickona is a developmental psychologist and professor who directs the Center for the Fourth and Fifth Rs, focusing on character education. He has a PhD in psychology and has written extensively on child moral development based on the work of Kohlberg and others. Lickona proposes that moral reasoning develops through stages from preschool through adulthood. Some criticize character education for lacking substantive values or improving test scores, but Lickona argues schools should develop intrinsic motivation and moral leadership in students and community.