In which of the following sampling methods is the sample also known as an…

Concept

Sampling methods are classified by the rule used to select units. Probability sampling uses a known random mechanism, while non-probability sampling may rely on availability, judgement, or preset quotas.

Names such as accidental and haphazard describe selection without a planned random frame, where cases are taken as they are encountered or accessed.

Application

Convenience sampling selects readily available participants with minimal access effort. Because units are included as they are encountered, this method is also called accidental or haphazard sampling.

Contrast

• Purposive sampling uses deliberate researcher judgement to choose information-rich or relevant cases.

• Quota sampling fills fixed targets for specified categories.

• Stratified random sampling divides the population into strata and randomly samples within them.

Cross-check

The description uses neither random selection within strata, preset quotas, nor deliberate expert judgement; it points to selection by immediate availability.

Therefore, the method is convenience sampling.