Psychology questions

  1. What is the difference between egocentrism in a child and selfishness in an adult?
  2. What is the evidence that early childhood is a sensitive time for learning language?
  3. What are the advantages of teaching a child two languages?
  4. How does fast-mapping aid the language explosion?
  5. Why did Vygotsky think that talking to oneself is an aid to cognition?