The __________ is the speaker's intended meaning behind an utterance, whereas the __________ is the listener's perception of the speaker's intended meaning.

The mean of a set of numbers 5, 5, 6, 6, 10, 10 is ________

a. 6 b. 8 c. 9 d. 7

While sitting with her parents in a restaurant waiting for service, four-year-old Elana watches as the waitress walks by without taking their order. "Mommy," she whines to her mother, "why isn't she talking to us when I'm so hungry?" Elana's belief that the waitress must know how hungry she is demonstrates the Piagetian concept of a. equilibration

b. egocentrism. c. centration. d. object permanence.