Paper 1 · Research Aptitude
UGC NET December 2023 (08.12.2023) Shift-I
Identify the non-probability samples from the following. Choose the correct answer from the options given below.
- 1. Simple random sample
- 2. Quota sample
- 3. Systematic sample
- 4. Snowball sample
A2, 3 and 4 only
B3 and 4 only
C1, 2 and 3 only
D2 and 4 only ✓ Correct
Correct answer: (D) 2 and 4 only — Quota and snowball samples are non-probability samples, so the answer is 2 and 4.
Explanation
★Quota and snowball samples are non-probability samples, so the answer is 2 and 4.
★In non-probability sampling not every member of the population has a known chance of selection.
★Quota sampling picks a set number from chosen categories without random selection.
★Snowball sampling recruits new participants through referrals from existing ones.
★Simple random and systematic sampling are probability methods with known selection chances.
★So the non-probability samples are quota and snowball, giving 2 and 4.
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