**Core Concept**
Case-control studies are a type of observational study design used to investigate the association between a particular exposure and a specific outcome or disease. This study design is particularly useful in situations where the outcome or disease is rare or has a long latency period.

**Why the Correct Answer is Right**
Case-control studies involve selecting participants based on the presence or absence of the outcome of interest, and then retrospectively assessing their exposure to potential risk factors. The study population is typically divided into two groups: cases (individuals with the outcome or disease) and controls (individuals without the outcome or disease). Researchers then compare the distribution of exposures between the two groups to identify potential associations. This study design is particularly useful for investigating rare diseases or outcomes, as it allows researchers to focus on individuals who have already developed the outcome of interest.

**Why Each Wrong Option is Incorrect**
**Option A:** Case-control studies are not typically used to establish causality between exposure and outcome, as the temporal relationship between exposure and outcome is often unclear.
**Option B:** Case-control studies do not involve randomization or allocation of participants to different groups, which is a key feature of experimental study designs.
**Option C:** Case-control studies are not designed to measure incidence rates or prevalence of the outcome of interest, but rather to identify potential risk factors associated with the outcome.

**Clinical Pearl / High-Yield Fact**
When interpreting the results of a case-control study, it's essential to consider the potential for selection bias and recall bias, as these can lead to inaccurate estimates of association between exposure and outcome.

**Correct Answer: D. Case-control studies are not designed to measure incidence rates or prevalence of the outcome of interest, but rather to identify potential risk factors associated with the outcome.**