The brain is most active during the _____ sleep stage

According to Ebbinghaus's savings curve, savings is a function of

a. word familiarity. b. sensory modality. c. elapsed time. d. reaction time.

You can explain to your friends what you did over Spring Break even though you were not together due to the _________ characteristic of language

a. infinite generativity c. displacement b. symbolic d. all of these