What was a main outcome of the Intermediate-Range Nuclear Forces Treaty? Weapons of certain types were limited.
Diplomatic relations worsened over time.
Tensions between the countries were resolved.
Weapons in certain locations were removed.

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.