A researcher studying anger management groups selects 10 clients from each group to participate. What sampling method is used?

The sampling method employed in the scenario described is stratified sampling. This approach involves dividing the population into distinct subgroups, or strata, that share similar characteristics—in this case, the different anger management groups. By selecting a specific number of clients from each group, the researcher ensures that each subgroup is adequately represented in the sample.

Stratified sampling is beneficial as it can lead to more precise and reliable estimates by taking into account the variations between groups. It allows for equal representation and minimizes bias that might occur if only one group was sampled. This method is particularly useful when researchers want to ensure that results can be generalized across different segments of the population, highlighting the nuances in how anger management interventions may impact individuals within various groups.