Answer:
a longitudinal study
Explanation:
Hello! A longitudinal study is a type of research design that involves studying and evaluating the same group of people for an extended period of time. It is an extended case study and constitutes a purely qualitative task. By taking a long time, your program can cost a lot of money.
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Usually yes. But the form of government and control that the US has is different, so they manage to manage these differences in order to be able to do their duty well in a coordinated manner.
