What term is used for designs that are like experimental designs but NOT quite equal to them and from which we can still draw causal inferences?

What impact has the "Motor Voter" law had?

a. It has had no impact on voter registration or voting. b. It has led to more new voters registering, most of whom claim to be Independents. c. It has led to more new voters registering, most of whom claim to Democrats. d. It has increased voter turnout by approximately 10 percent.

Which were the points that Scalia made in the Breyer v. Scalia debate?

A. "Originalist" and advocating a "living constitution". B. "Reasonable interpretation" and "active liberty" C. "Living constitution" and "active liberty" D. "Originalist" and "reasonable interpretation".