What is the device that allows for the creation of magnetic fields from currents and works at ridiculously low temperatures?
a) superconducting quantum interference device
b) single photon emission topography
c) positron emission tomography
d) magnetocephalograph y
e) magnetic resonance imaging
Question 2
In the study described above, which was the dependent variable?
a) sex of participant
b) hours of sleep
c) the exam
d) the topic of the exam
e) random assignment