If you choose to own a credit card, it is important to: O A. make minimum payments each month.
B. use more than one credit card to distribute the costs.
c. use credit cards as often as possible.
D. pay off the balance each month.
SUBMI

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.