What does this mean i need more information!

Knowing that you will be punished for breaking mom's favorite dish is a function of the

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?

What are the state's top three naturally produced minelars?