If a test yields consistent results every time it is used, it has a high degree of what?

Which best describes the idea behind the "invisible hand"? producers decide what to make for consumers, which guides the economy. individuals seeking their own self interest benefit the economy as a whole. government sets policy for producers and consumers, which guides the economy. consumers decide what they need and want to buy, which guides the economy.

Ms. h's family is in the waiting room of the intensive care unit. ms. h is very ill and the family has been told she will probably die during this hospital admission. you are walking by the waiting room and you see that they are all seated together, crying. what is your best response? this task contains the radio buttons and checkboxes for options. the shortcut keys to perform this task are a to h and alt+1 to alt+9. a go into the waiting room, sit next to them, and give them time to talk with you. b call the hospital chaplain to visit them and offer prayers. c find a social worker to go into the waiting room to see if they need anything. d leave them alone to give them private time to do their grieving.

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?