Piaget described children's talk to themselves as egocentric speech, a sign of:

1. Piaget recorded children talking to themselves in classrooms in 1923. 2. He called it egocentric speech. 3. For Piaget it was a sign of cognitive immaturity that later gives way to mature social speech. **Why not the others:** Self-control is closer to Vygotsky's reading of the same talk. _Source: Wikipedia, "Private speech", section "History and theory" (revision 1378894484)_