Nokea
In the study of COPD which test will be suitable:
- A. Z test
- B. t- test
- C. chi-square test
- D. anova test
Correct Answer: B
Rationale: T-tests are commonly used to compare means in studies like those evaluating COPD treatments.
You may also like to solve these questions
obesity occurs due to:
- A. more consumption of calorie
- B. more consumption of protein
- C. more consumption of vitamins
- D. None
Correct Answer: A
Rationale: Obesity results from excessive calorie intake compared to energy expenditure.
Which of the following is the best indicator of health status of a community?
- A. Birth rate
- B. Infant mortality rate
- C. Crude death rate
- D. None of the above
Correct Answer: B
Rationale: Infant Mortality Rate (IMR) is widely regarded as a sensitive indicator of the health status of a community, reflecting access to healthcare, nutrition, and living conditions.
Suggest other examples of how epidemiology might be applied to study the causality of disease.
- A. Investigating the link between air pollution and respiratory diseases.
- B. Studying the impact of diet on cardiovascular health.
- C. Examining the relationship between smoking and lung cancer.
- D. All of the above.
Correct Answer: D
Rationale: Epidemiology can study disease causality in various contexts, including environmental exposures, lifestyle factors, and behavioral risks.
Arrange a field visit to a health-related agency that is located in your community. An example might be a public health department, nonprofit health-related organization, or research institute. Find out about how epidemiologists contribute to these settings.
- A. Field visits reveal hands-on contributions of epidemiologists to public health initiatives.
- B. Visits are purely recreational.
- C. Agencies do not employ epidemiologists.
- D. Such visits offer no educational benefit.
Correct Answer: A
Rationale: Field visits expose students to applied epidemiology, demonstrating how professionals address public health challenges in real-world contexts.
The balancing equation is
- A. P1+(B-D)+(I-E)=P2
- B. P1-(B-D)-(I-E)=P2
- C. P2+(B-D)+(I-E)=P1
- D. P1+P1(B-D)+P1(I-E)=P2
Correct Answer: A
Rationale: The balancing equation for population change is P1 + (B-D) + (I-E) = P2, where B is births, D is deaths, I is in-migration, and E is out-migration.