Which of the following research design entails studying two contrasting cases using more or less identical methods ?

Studying two contrasting cases with more or less identical methods defines the comparative research design.

Experimental design instead manipulates an independent variable and uses control groups, not paired contrasting cases.

Longitudinal design follows the same subjects across time rather than comparing two cases side by side.

Latitudinal design is not a recognised research design and merely sounds like a paired opposite of longitudinal.

The comparative logic sharpens understanding of each case through systematic contrast.

Cross-national research is the most common form of comparative design in the social sciences.