Researchers studied 208 infants whose brains were temporarily deprived of oxygen due to complications at birth. When researchers detected oxygen deprivation, they randomly assigned babies to either usual care or to a whole-body cooling group. The goal was to see whether reducing body temperature for three days after birth increased the rate of survival without brain damage. What is the explanatory variable?
Researchers studied 208 infants whose brains were temporarily deprived of oxygen due to complications at birth. When researchers detected oxygen deprivation, they randomly assigned babies to either usual care or to a whole-body cooling group. The goal was to see whether reducing body temperature for three days after birth increased the rate of survival without brain damage.
What is the explanatory variable?
Explanatory variable in a study are the independent variables which affect the values of the dependent variables. In the given problem, whether the reduction in body temperature affects the rate of survival without brain damage, thus, the explanatory variables are the methods of usual care or whole body cooling(since these are the methods of reduction in body temperature.
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