On the basis of twin studies and other kinship evidence, researchers estimate that about __________ of the differences in IQ among children can be traced to their genetic makeup

Jean just drove all night long and hasn't slept for over 24 hours. When she finally gets home, Jean dreams more than she normally does. This is an example of __________

a) sleep cycles. b) REM sleep. c) NREM sleep. d) REM rebound.

The _________________offers a framework for following information as it moves from the environment to our permanent storage, to be retrieved when needed

a) information processing model b) parallel distributed processing model c) non-episodic memory d) episodic memory