A researcher is interested in the eventual divorce rates of people who live together before they get married compared to those who do not cohabitate before marriage. The researcher is particularly interested in the couples who cohabitate to see if cohabitation leads to higher divorce rates. In a sense, the couples who cohabitate are serving as the group.

answer; ///the above statement is (true); //

well it depends i think people around the world are coming around to gay marriage. but if you are talking abortion then wow, so much to talk about. such as men thinking they have the right to choose if women can, the fact there are health concerns if the women can't get one, and many more arguments to discuss. so i would definitely say abortion would be a much more interesting topic.

answer; the intervening variable;

answer; all of the above are correct;