Which sampling method involves a selection based on convenience?

Convenience sampling is a method where individuals are selected based on their easy availability and proximity to the researcher. This approach often prioritizes speed and practicality over randomness. For instance, if a researcher conducts a survey in a location where they can easily access participants, like a shopping mall or a classroom, they are using convenience sampling.

This method is useful in exploratory research or when resources are limited, but it can introduce significant bias as it does not require random selection and may not be representative of the entire population. In contrast to systematic, stratified random, or simple random sampling methods, which aim for a more structured and unbiased selection process, convenience sampling reflects a more casual and opportunistic approach.