What artwork did the Hopi people create

In which research method does a researcher change the value of one variable to determine how the change affects another variable? a. experiment b. observational research c. survey d. case study

Question 12 chach os) (amencan money lo 4 hc which of the following scenarios would be most likely to cause a small bank to be less willing to loan money to small businesses in a community? or the bank cannot sell the loan to some other bank at the bank cannot make profit on the loan ut the customer has too much in savings in the community cannot grow from the loan

Chen's research team randomly assigned some newborns and their mothers either to a breastfeeding promotion group (where breastfeeding was encouraged, but not required) or to a normal pediatric care group (where breastfeeding was neither encouraged nor discouraged). which research method did they use?