Given below are two statements: Statement I: Non-probability samples use…
2022
Given below are two statements:
Statement I: Non-probability samples use available respondents and no specific random selection procedure is followed.
Statement II: It is a fact that non-probability samples accurately reflect the population characteristics.
In the light of the above statements, choose the correct answer from the options given below:
Answer: C. Statement I is true but Statement II is false — CONCEPTNon-probability sampling does not give every population member a known, non-zero chance of selection. Convenience and purposive methods may use…
- A.
Both Statement I and Statement II are true
- B.
Both Statement I and Statement II are false
- C.
Statement I is true but Statement II is false
- D.
Statement I is false but Statement II is true
Show answer & explanation
Correct answer: C
CONCEPT
Non-probability sampling does not give every population member a known, non-zero chance of selection. Convenience and purposive methods may use accessible respondents, so sampling error cannot be estimated in the same way as in probability sampling and population representativeness is not guaranteed.
APPLICATION
Statement I describes availability-based recruitment without a specified random selection procedure. This is characteristic of non-probability sampling, so Statement I is true.
Statement II claims that such samples accurately reflect the population. Because inclusion probabilities are unknown and selection bias may occur, that accuracy cannot be assumed; Statement II is false.
Combining the two evaluations gives: Statement I is true and Statement II is false.
CONTRAST
Both statements true: this treats the representativeness claim as guaranteed, which non-probability selection does not establish.
Both statements false: this rejects the valid description of non-probability selection in Statement I.
Statement I true and Statement II false: this matches the separate evaluation of both statements.
Statement I false and Statement II true: this reverses both evaluations.
RESULT
Therefore, the correct result is: Statement I is true but Statement II is false.