Answer:
. single-group validity.
Explanation:
single group validity occurs when the statistical prediction shows different validities for groups such that one group may have something different from zero statistical validity and the other has something different. This is seen in the above example with the men and women group. The statistical prediction for men holds better validity since its prediction is more statistically significant than the women group hence single group validity
Answer: If you are talking about the Mexican American War, they must of crossed Texas.
Explanation : I am assuming you are talking about Border Dispute between Mexico and America.
This is just a guess, sorry if it's wrong but I think it's B