Task: Text Categorization
Input (English): Elton Mayo's Hawthorne Works studies employed the clinical methodology of this man, whose disciple Robbie Case theorized executive control structures. This thinker created the theory of "genetic epistemology" and theorized that people understand the world through schemata. He also devised an experiment asking subjects to identify the water levels of two beakers and described a phenomenon in which something that has disappeared from view is believed not to exist, leading to his coining of the term "object permanence." For 10 points, name this Swiss psychologist who included the sensorimotor stage in his four-stage process of cognitive development in children.
Output (English): Social Science