<span>A strong study establishes validity because it is important that the researcher measures what he or she intends to measure.
Validity in a study means that it is logical, sound, and reasonable - that the researcher has done his or her job properly, measured everything correctly, and has come to certain conclusions which could be proven and checked if necessary.
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The settlers became successful farmers and built housing and factories. Unfortunately, the Native Americans lost their land and had to live on small reservations. In conclusion, the Westward Expansion led to America becoming a superpower.
Answer:
The Drawbacks of Federalism. Federalism also comes with drawbacks. Chief among them are economic disparities across states, race-to-the-bottom dynamics (i.e., states compete to attract business by lowering taxes and regulations), and the difficulty of taking action on issues of national importance.
The answer is 3, hope this helps!
