Nokea
Randomization is done in experimental study:
- A. to eliminate selection bias.
- B. to select control
- C. to eliminate confounding bias
- D. all of above
Correct Answer: D
Rationale: Randomization helps to eliminate selection and confounding biases while selecting controls.
You may also like to solve these questions
Which one are two dimensional diagrams?
- A. Bar diagrams
- B. Cubes
- C. Circles
- D. None of them
Correct Answer: A
Rationale: Bar diagrams represent two-dimensional data.
Establishment of DDA in
- A. 1979
- B. 1989
- C. 1979
- D. 1986
Correct Answer: A
Rationale: The Department of Drug Administration (DDA) was established in 1979.
First step of epidemic investigation?
- A. Preparing case definition
- B. Mapping the epidemic
- C. Confirmation
- D. Searching for the cases
Correct Answer: C
Rationale: The first step in investigating an epidemic is to confirm the existence of the outbreak through verification of cases.
CDM stands for-
- A. clean development mechanism
- B. community development mechanism
- C. clear development model
- D. none
Correct Answer: A
Rationale: Clean Development Mechanism (CDM) is a part of the Kyoto Protocol aimed at reducing emissions.
Define the following terms: Intervention study
- A. A study where researchers observe natural behaviors.
- B. A study where researchers manipulate variables to assess impact.
- C. A study analyzing past records.
- D. A study based solely on surveys.
Correct Answer: B
Rationale: Intervention studies involve deliberate manipulation of variables by researchers.