7. What is one reason the United States has a two-party system?

China wants to take control over social media in which other region? question 4 options: taiwan chile japan hong kong

The federal crescent is shaped like what letter

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.