Nokea
Selection bias interferes-
- A. internal validity
- B. external validity
- C. face validity
- D. all
Correct Answer: A
Rationale: Selection bias undermines internal validity by affecting the comparability of study groups.
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Standard error is measure of
- A. Conceptual error
- B. Sampling error
- C. Instrumental error
- D. Observer error
Correct Answer: B
Rationale: Standard error quantifies the precision of the sample mean as an estimate of the population mean.
Community based participatory researches (CBPR) use
- A. Emic perspective
- B. Etic perspective
- C. Technical perspective
- D. Both b and c
Correct Answer: D
Rationale: CBPR often employs both etic and technical perspectives to ensure comprehensive understanding and applicability.
The statistical analysis of two unrelated big data (n=200) is by:
- A. A paired t-test
- B. Chi-square test
- C. Z-test
- D. Unpaired test
Correct Answer: D
Rationale: Unpaired tests compare means between two independent large samples.
First hospital in Nepal with thirty beded male and female section was established in
- A. 1882
- B. 1884
- C. 1886
- D. 1890
Correct Answer: A
Rationale: The first hospital in Nepal with separate male and female sections was established in 1882.
Which shape of a population pyramid is most consistent with a young population?
- A. Tall, narrow rectangle
- B. Short, wide rectangle
- C. Triangle base down
- D. Triangle base up
Correct Answer: C
Rationale: A triangle base down reflects a high proportion of young individuals.