Paper 1 · Research Aptitude
Which of the following is an example of a non-random sampling method?
AConvenience sampling ✓ Correct
BStratified random sampling
CSimple random sampling
DCluster random sampling
Correct answer: (A) Convenience sampling — Convenience sampling is an example of a non-random sampling method, so that is the answer.
Explanation
★Convenience sampling is an example of a non-random sampling method, so that is the answer.
★Convenience sampling simply takes whoever is easiest to reach.
★So chance does not govern the selection, which makes it a non-random method.
★Stratified random sampling draws random samples from strata, a random method.
★Simple random sampling gives every member an equal chance, purely random.
★Cluster random sampling selects clusters at random, so only convenience sampling is non-random.
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