"freedom of expression" is most closely linked with which amendment? a) 1st amendment b) 2nd amendment c) 5th amendment d) 6th amendment

Micah is studying child behavior in playgrounds throughout the world. he wants to see how the children react when teachers select the same child to be the first to use each piece of equipment. which approach is micah is using?

Whether or not a given study has the possibility of causing harm to participants:

What occurred during the free banking era? the dollar bill was introduced. the second bank of the united states was established. repaying of loans was not closely monitored. currency varied widely from state to state.