Non-Probability Sampling

What is a key feature of convenience sampling?

• Samples are selected based on specific criteria

• Samples are chosen because they are easiest to access

• Samples are selected to represent known characteristics of a population

• Every sample has a known probability of being selected

Snowball sampling is particularly useful for populations that are:

• Large and easily accessible

• Small and concentrated

• Difficult to access or hidden

• Highly heterogeneous

Which sampling method involves participants referring other participants?

• Quota sampling

• Purposive sampling

• Snowball sampling

• Convenience sampling

Quota sampling is designed to:

• Ensure that the sample reflects certain characteristics of the population

• Gather data from whoever is conveniently available

• Allow participants to recruit other participants

• Select individuals based on a random mechanism

Purposive sampling is based on:

• Random selection

• The judgment of the researcher

• The convenience of the sample

• The referrals from other participants

Which sampling method is not a type of non-probability sampling?

• Simple random sampling

• Snowball sampling

• Convenience sampling

• Quota sampling

In which scenario is convenience sampling most appropriately used?

• When detailed accuracy is critical

• When the population is too large for other sampling methods

• When quick and easy access to participants is needed

• When the researcher needs a representative sample

Snowball sampling is particularly effective for studying:

• The general population

• Easily accessible subjects

• Rare or hard-to-reach groups

• Large demographic groups

Quota sampling attempts to:

• Randomize participant selection

• Reflect the diversity of a population

• Use the easiest available subjects

• Rely on participant referrals

Purposive sampling is useful for:

• Large scale statistical research

• Gathering data from a specific subset of a population

• Achieving random sampling

• Ensuring statistical generalization