Paper 1 · Research Aptitude UGC NET December 2022 (21.02.2023) Shift-I

Given below are two statements. In the light of the above statements, choose the correct answer from the options given below.

Statement I:In probability sampling, it is not necessary that all the members of the population have an equal opportunity to be part of the sample.

Statement II:The non-probability sampling method is not a fixed or predefined selection process.

ABoth Statement I and Statement II are true ✓ Correct

BBoth Statement I and Statement II are false

CStatement I is true but Statement II is false

DStatement I is false but Statement II is true

Correct answer: (A) Both Statement I and Statement II are true

Explanation

Probability sampling requires only a known non-zero chance, not an equal one, so Statement 1 is true, and non-probability selection is subjective rather than fixed, so Statement 2 is true.

Stratified disproportionate and probability-proportional-to-size designs give unequal yet known selection chances.

Only simple random sampling actually grants every unit an equal opportunity.

Non-probability methods rest on convenience or judgement, following no predefined random rule.

Convenience, quota, purposive and snowball sampling all illustrate this unfixed selection.

The known-probability property is what allows sampling error to be estimated.

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