When teaching new behavior, you should use which type of prompt hierarchy?

Why would be a good national slogan that people could identify with and rally behind

Which of the following would a historian most likely study to find data

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.