Sarah is concerned that a police in her community start more people of color than whites for driving over the speed limit. She wants to build a multi racial correlation to protest what is happening. What must you do to

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.