In 200 words, describe the purposive sampling to be used on a project topic; "investigating the prevalence of water-borne diseases within the Wa Municipality and its environs"

Purposive sampling, a non-random sampling technique, will be employed in the project investigating the prevalence of water-borne diseases within Wa Municipality and its surroundings. This method focuses on selecting participants who possess specific characteristics relevant to the study. Given the project’s objective, individuals will be chosen based on criteria such as: recent diagnosis of water-borne diseases, proximity to contaminated water sources, and expertise in public health or water sanitation within the municipality. Key groups targeted for purposive sampling include healthcare professionals engaged in treating water-borne diseases, local health officers, and residents living near water bodies known to harbor contamination. By specifically selecting these participants, the study aims to gain in-depth insight into experiences, perceptions, and factors contributing to the prevalence of such diseases. This approach allows for a richer understanding of the context and nuances surrounding water-borne disease outbreaks, rather than relying on random sampling which may yield less relevant data. Additionally, the purposive sampling strategy supports the collection of qualitative data through interviews and focus group discussions, facilitating a comprehensive assessment of the public health landscape in Wa Municipality and its environs. This targeted approach ultimately aims to inform effective disease prevention and intervention strategies in the region.