Why might a researcher use purposive sampling?

A researcher may opt for purposive sampling when the objective is to gather specific information from targeted individuals who possess particular characteristics or experiences relevant to the study. This sampling method is particularly beneficial when researchers are interested in a specific subgroup of the population or when examining complex phenomena that require in-depth understanding.

For instance, if the study involves understanding a rare condition, the researcher would purposefully select individuals who have that condition rather than randomly selecting from the general population, which might include many who do not have the relevant experience. This focused approach enhances the quality of the data collected and allows for richer insights that can lead to more meaningful conclusions in the research.