James is talking about how much better the world would be if everyone simply agreed to "love one another" and "make peace, not war." in piaget's view, how old do you think james is? which stage? and why?

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.