Multiple Choice
British researchers randomly assigned 424 hospitalized premature infants either to formula feeding or to breast-milk feeding.They found that on intelligence tests taken at the age of 8,those who were breast fed significantly scored higher than those who were formula fed.These researchers conducted a(n) :
A) survey.
B) naturalistic observation.
C) experiment.
D) correlational design.
Correct Answer:
Verified
Correct Answer:
Verified
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