What is the main goal of using snowball sampling in qualitative research?

Snowball sampling is particularly useful in qualitative research when researchers want to study hard-to-reach or marginalized populations. The main goal of this method is to leverage existing social networks to identify and recruit participants. When initial participants are located, they are often asked to refer others they know who may also meet the criteria for the study. This chain referral process allows researchers to tap into communities that may be difficult to access through conventional sampling methods, ensuring that the study can include perspectives from populations that are often underrepresented.

While obtaining large sample sizes and reducing data collection time can be beneficial side effects of this method, the primary focus is on accessing those populations that are not easily visible or reachable. This characteristic of snowball sampling makes it ideal for exploratory studies where understanding the experiences and contexts of unique groups is paramount.