The government has different agencies responsible for protecting the many cultures represented in America. Explain the roles of the National Endowment for the Arts, the National Endowment for the Humanities, and the National Archives and Records Administration.

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.