What is a major limitation of a comparative investigation?

A major limitation of a comparative investigation is that it may oversimplify complex phenomena by focusing on only a few variables or contexts, potentially ignoring crucial factors that influence the outcomes. Additionally, differences in the contexts or conditions being compared can lead to misleading conclusions, as results may not be generalizable beyond the specific cases analyzed. This approach may also struggle with establishing causality, as it typically identifies correlations rather than direct cause-and-effect relationships.