One research team randomly assigned some newborns and their mothers either to a breast-feeding promotion group or to a normal pediatric care group. Which research method did they use?

Question

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The research team used an experiment by randomly assigning newborns and their mothers to either a breast-feeding promotion group or a normal pediatric care group, which allows for manipulation of the independent variable (breast-feeding promotion) and the observation of the effects on the dependent variable (breast-feeding rates).

One Research Team Randomly Assigned Some Newborns and Their Mothers