Mae just joined a religious group that holds weekly support groups for divorced people, has workshops on bringing spirituality into everyday life, and provides life coaches who help members set and maintain goals. This religious group is an example of a:

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.