When discussing the dimensions of temperament, what is the term used to refer to the amount of time the child devotes to an activity and the effect of distraction on that activity?

The ugly duckling story is similar to the experience of the enlightenment because, when the duckling realized that he was a swan,

a) he realized that nothing had changed. b) he knew that he was better than the ducks. c) he felt out of sorts. d) he was eager to follow the other swans.

During which of Piaget's stages do children begin to express their internal experience in terms of symbols such as speaking?

sensorimotor preoperational formal operational concrete operational