A student uses a diagram to show the scale sizes of the planets. Which planet’s diameter would be approximately the distance of the West Coast to the East Coast of the United States Uranus

Neptune

Jupiter

Mercury.

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.