Sings of ashes have been obtained in the caves ​

Where did thomas pain right the federalist papers

How did geographical features create a civilization in china

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.