Quizizz Test: Sampling Techniques in Research

What is sampling in research?

• The process of collecting data from an entire population

• The process of selecting a subset of individuals from a population

• The process of analyzing data

• The process of designing a questionnaire

Which of the following is a probability sampling technique?

• Convenience sampling

• Quota sampling

• Simple random sampling

• Snowball sampling

In stratified random sampling, the population is divided into:

• Groups based on convenience

• Strata or subgroups based on shared characteristics

• Random numbers

• Regions or districts only

Cluster sampling involves:

• Selecting individuals one by one randomly

• Dividing the population into clusters and randomly selecting clusters

• Using volunteers for sampling

• Selecting all members of the population

Which of the following is not a probability sampling method?

• Stratified sampling

• Cluster sampling

• Purposive sampling

• Systematic sampling

The formula for calculating the sampling interval (k) in systematic sampling is:

• Population / Sample size

• Sample size / Population

• Population × Sample size

• (Population + Sample size) / 2

What is the main advantage of probability sampling?

• It is faster and cheaper

• It provides a representative sample

• It requires fewer participants

• It avoids randomization

Which of the following best defines purposive sampling?

• Selecting participants who are easily available

• Selecting participants based on researcher's judgment

• Selecting participants by random number

• Selecting participants from each stratum

Convenience sampling is mainly used when:

• The population is very small

• The researcher needs a quick and easy sample

• Randomization is required

• The sample must represent all groups

Snowball sampling is useful for studying hidden or hard-to-reach populations.

(a)