He spent his early years smuggling Jews across a British blockade in Palestine.  
He spent his early years smuggling Jews across a British blockade in Palestine.  This founder of Harvard's Cluster School was inspired by James Mark Baldwin, though he developed his most famous theory utilizing the clinical interview, as did Piaget.  The work for which he is best known is a three-staged, six-tiered theory that states that individuals cannot "jump" between levels, but must advance linearly.  His work was divided into the pre-conventional, conventional, and post-conventional stages.  FTP, identify this American psychologist and developer of a namesake theory of moral development.
He spent his early years smuggling Jews across a British blockade in Palestine.  
Lawrence Kohlberg