Külpe was a student of history at the University of Leipzig when he encountered Wundt and decided to change his major to work with Wundt. When he graduated he became Wundt's assistant.
However, he became somewhat impatient with the strictures that Wundt had placed on what could and could not be studied and, after leaving Leipzig for the University of Würzburg, he began to practice what he called systematic experimental introspection. His subjects would complete complex tasks and then provide a retrospective account of their cognitive processes during the task.
They Should Have Thought about the Consequences: The Crisis of Cognitivism and a Second Chance for Behavior Analysis
Jan 01, 2008; When psychology was being changed and redefined in the late 1950s and the 1960s, many psychologists saw new possibilities arising...