Confirmity as a negative force in history

What are the basic input of iron and steel industry

On this map, the state of georgia is in which section of the map?

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.