Which nonprobability sampling technique selects participants from groups arbitrarily within each group?

Which nonprobability sampling technique selects participants from groups arbitrarily within each group?

• A. Convenience Sample
• B. Quota Sampling
• C. Snowball Sampling
• D. Systematic Random Sample

Answer: (B)

The idea being tested is how a sample is built by dividing the population into groups and then filling predefined quotas within those groups without using random selection. This describes quota sampling: you define subgroups and the number of participants needed from each group, and then you select people within each group in a nonrandom, arbitrarily chosen way to meet those quotas. Because the selection within each group isn’t random and doesn’t give everyone in the population an equal chance of selection, it’s a nonprobability method. If we contrast with the other methods: convenience sampling picks whoever is easiest to recruit, without structured groups or quotas; snowball sampling relies on participants referring others, often used for hard-to-reach populations and not about filling predefined group quotas; systematic random sampling uses a random starting point and a fixed skip interval, which makes it a probability method where every individual has a known chance of selection. The description of choosing within each group in an arbitrary way aligns exactly with quota sampling.

The idea being tested is how a sample is built by dividing the population into groups and then filling predefined quotas within those groups without using random selection. This describes quota sampling: you define subgroups and the number of participants needed from each group, and then you select people within each group in a nonrandom, arbitrarily chosen way to meet those quotas. Because the selection within each group isn’t random and doesn’t give everyone in the population an equal chance of selection, it’s a nonprobability method.

If we contrast with the other methods: convenience sampling picks whoever is easiest to recruit, without structured groups or quotas; snowball sampling relies on participants referring others, often used for hard-to-reach populations and not about filling predefined group quotas; systematic random sampling uses a random starting point and a fixed skip interval, which makes it a probability method where every individual has a known chance of selection. The description of choosing within each group in an arbitrary way aligns exactly with quota sampling.