Nokea
Define in your own words the term 'operations research'.
- A. The use of mathematical models to optimize healthcare delivery.
- B. Research focused on surgical procedures.
- C. Studies conducted in hospital operating rooms.
- D. Analysis of clinical trial data.
Correct Answer: A
Rationale: Operations research involves applying mathematical and analytical methods to optimize complex systems, such as healthcare delivery.
You may also like to solve these questions
Imparts of a table Heading of column is known as:
- A. Caption
- B. Head note
- C. Stabs
- D. None of them
Correct Answer: A
Rationale: Captions provide titles or explanations for columns in tables.
The measure of spread most affected by one extreme value is the:
- A. Interquartile range
- B. Range
- C. Standard deviation
- D. Mean
Correct Answer: B
Rationale: The range depends only on the largest and smallest values, making it sensitive to outliers.
Total fertility rate (TFR) refers to
- A. Number of births per one thousand women
- B. Number of women between 15-49 years
- C. Number of children per woman (approximate completed family size)
- D. None of the above
Correct Answer: C
Rationale: TFR measures the average number of children a woman would have during her reproductive years, approximating the completed family size.
List examples of metallic compounds that pose environmental hazards. What are some examples of health effects thought to be associated with arsenic, mercury, and lead?
- A. Arsenic: cancer; Mercury: neurotoxicity; Lead: developmental delays.
- B. Arsenic: improved digestion; Mercury: enhanced memory; Lead: stronger bones.
- C. Arsenic: weight loss; Mercury: better vision; Lead: faster reflexes.
- D. Arsenic: increased stamina; Mercury: clearer speech; Lead: heightened focus.
Correct Answer: A
Rationale: Arsenic is carcinogenic, mercury causes neurotoxicity, and lead impairs cognitive development, particularly in children.
Describe the significance for epidemiology of the use of natural experiments.
- A. Natural experiments allow for randomized controlled trials.
- B. Natural experiments eliminate the need for data collection.
- C. Natural experiments provide real-world data without artificial manipulation.
- D. Natural experiments are only used in laboratory settings.
Correct Answer: C
Rationale: Natural experiments study real-world conditions, providing valuable insights into disease causation and prevention.