Final answer:
Case studies are limited in studying psychopathology due to their focus on individual cases and inability to generalize findings. Experimental research is a stronger strategy for studying psychopathology as it allows for the establishment of cause-and-effect relationships.
Step-by-step explanation:
Case studies are considered a poor way of studying psychopathology because they rely on the analysis of a single individual or a small group of individuals, which makes it difficult to draw generalized conclusions. 
While case studies provide detailed and in-depth information about a specific case, they lack the ability to establish causation or make broad claims about larger populations.
 
One strategy for studying psychopathology that is stronger than a case study is experimental research. 
In experimental research, researchers manipulate variables and compare a control group to an experimental group, allowing them to establish cause-and-effect relationships. This method provides more reliable and generalizable findings compared to a case study.