ewborn Brain Damage 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 s
Question 1
Newborn Brain Damage
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.
Which of the following is used in the design of this experiment? Check all that apply.
- Random assignment
- Control group
- Double blinding
Question 2
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?
- Infants whose brains are temporarily deprived of oxygen
- Usual care or whole-body cooling
- Survival without brain damage
Question 3
Newborn Brain Damage
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 response variable?
- iInfants whose brains are temporarily deprived of oxygen
- Usual care or whole-body cooling
- Survival without brain damage
Question 4
Newborn Brain Damage
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 purpose of including the “usual care” treatment in the experiment?
- To provide a baseline for judging the survival rates of infants who received whole-body cooling
- To control for the placebo effect and keep it from confounding the results
- To create similar treatment groups so that a cause-and-effect relationship can be established
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