Piaget identifies that the 2- to 7-year-old child is in a preoperational stage. The nurse observes a 21/2-year- old girl taking a toy from another and recognizes that the child is unable to put herself in the place of another because the toddler is displaying:
1. Centration.
2. Negativism.
3. Egocentrism.
4. Selfishness.