- Enhanced Representativeness: Ensures that all relevant subgroups are represented. - Reduced Bias: Minimizes the risk of sampling bias. - Improved Precision and Accuracy: Leads to more reliable and valid results.
Disadvantages:
- Complexity: Requires detailed knowledge of the population and its strata. - Cost and Time: More resource-intensive compared to simple random sampling. - Difficulty in Stratification: Identifying appropriate strata can be challenging.