Which Southeast Asian nation was until recently extremely isolated from the outside world due to its paranoid military dictatorship? A Myanmar/Burma
B Laos
C Thailand
D Vietnam

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.