A sampling technique that relies on getting information from people who know about a population of interest rather than from members of that population themselves, refers to?

Correct option is B

Key information sampling involves gathering data from individuals who possess specialized knowledge or insights about the population of interest, rather than directly surveying the members of that population. These individuals, known as "key informants," serve as valuable sources of information due to their expertise, experience, or close connections to the group being studied.
This technique is widely used in qualitative research, especially in exploratory studies, ethnography, and social science research, where direct access to the population may be limited or impractical.
Information Booster:
1. Key Information Sampling:
· Used when direct sampling of the population is difficult or infeasible.
· Relies on knowledgeable individuals who can provide deep insights.
· Often employed in community studies, public health, and ethnographic research.
2. Applications:
· Identifying cultural norms or social dynamics.
· Gaining insights into marginalized or hard-to-reach populations.
· Collecting expert opinions on specific issues.
3. Advantages:
· Cost-effective and efficient in exploratory research.
· Provides rich, detailed, and context-specific information.