1. Carnegie Mellon University, Department of Psychology, Pittsburgh, PA 15213. He specializes in cognitive psychology and artificial intelligence
2. Stanford University, School of Education, Stanford, CA 94305. His areas of specialization are learning, reasoning, and understanding
3. Carnegie Mellon University, Department of Psychology, Pittsburgh, PA 15213. She specializes in learning and memory
4. Carnegie Mellon University, Department of Psychology, Pittsburgh, PA 15213. His areas of specialization are learning and problem solving