A researcher collected samples from many students available in schools is called:
A researcher collected samples from many students available in schools is called:
(a) Multistage sampling
(b) Purposive sampling
(c) Convenience sampling
(d) Quota sampling
✅ Correct Option:
(c) Convenience sampling
Explanation:
Convenience sampling is a non-probability sampling technique in which the researcher selects participants who are easily available and accessible. In this method, students present in schools or classrooms are selected simply because they are convenient to reach. This method is often used in educational research when time, cost, or resources are limited. While it is easy and quick, convenience sampling lacks representativeness and may produce biased results. Multistage sampling involves multiple stages of selection, purposive sampling selects participants with specific characteristics, and quota sampling ensures fixed proportions. Since the question emphasizes “available students,” convenience sampling is correct. PPSC frequently tests sampling techniques to assess understanding of research methodology.
10 PPSC-Relevant Facts:
1. Convenience sampling is non-probability
2. Based on accessibility
3. Easy and economical
4. Risk of bias
5. Common in educational research
6. Lacks generalizability
7. Used in preliminary studies
8. No randomization
9. Time-saving technique
10. PPSC research MCQ favorite