Do anyone need help with social studies

What would a student most likely use if he or she wanted to consult a secondary source

Under a tyranny the power to make a political decision is in the hands of a

Using mr smith and his id, identify two potential internal validity threats that might affect the a—b design. tell me how that threat might impact conclusions in the a—b design. note #1: you cannot use maturation (since i already did that one for note #2: there are some mr smith id threats that won’t have much impact in a single case design.