> However, in cultural anthropology, its methods are purely qualitative. You can...

> However, in cultural anthropology, its methods are purely qualitative. You can't make a hypothesis, breed 100 people and have them interact for a lifetime with your variable (with another 100 for control) to prove a hypothesis.

You can't evaluate any hypothesis, but you can evaluate a lot of using natural experiments: https://en.wikipedia.org/wiki/Natural_experiment.