In the preceding question the independent variable is
a. stress.
b. adrenaline.
c. location.
d. the number of children treated for sleep disturbance.
Question 2
If we are comparing the adrenaline scores of children who live near an airport with those who live away from an airport, the dependent variable is
a. location.
b. adrenaline.
c. stress.
d. distance from the airport.