The basic premise of the davis-moore thesis is that the unequal distribution of rewards in social stratification:
is an outdated mode of societal organization
is an artificial reflection of society
serves a purpose in society
cannot be justified

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.