Harry Kempen
In the 1990s, Kempen and Hubert Hermans developed a new approach in cultural psychology around the concept of the dialogical self. In 1993, they published the seminal work "The dialogical self: Meaning as movement", and published several articles in "American Psychologist", "Journal of Personality" and "Theory & Psychology". Despite their success Kempen suffered from depression. In 2000, he died in Nijmegen four days before his retirement from the Radboud University. At the university he is remembered by as the "personification of cultural psychology."Articles, a selection:
Donald T. Campbell
Donald Thomas Campbell (November 20, 1916 – May 5, 1996) was an American social scientist. He is noted for his work in methodology. He coined the term "evolutionary epistemology" and developed a selectionist theory of human creativity. A "Review of General Psychology" survey, published in 2002, ranked Campbell as the 33rd most cited psychologist of the 20th century.