Final answer:
The false statement regarding case studies is that they provide superficial information. In reality, case studies offer in-depth, qualitative insights but are limited by their inability to generalize findings to a broader population.
Step-by-step explanation:
Case studies provide an in-depth look into a single case, such as that of a foster child, a cancer patient, or a criminal. They are not characterized by superficiality but by their depth and detailed exploration of one particular instance.
However, the major limitation of a case study is not its superficiality but its inability to generalize the findings to a wider population due to the uniqueness of the case being studied.
Case studies depend on qualitative research, which offers rich, in-depth information, but it can be subjective and difficult to replicate across different settings or larger populations.