PLEASE HELP I WILL GIVE BRAINIST Which Central American country legalized slavery and applied for statehood in the USA?
A. Costa Rica
B. Honduras
C. Nicaragua
D. Panama

What was argablely the worst Supreme Court ruling in history?
A. Dread Scott decision
B. Ostend Manifesto
C. Kansas Choice
D. Walker Sonora

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.