MPH 6011 Final cont Questions and

MPH 6011 Final (cont) Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025)

T/F: In studies where the research question is looking at the

cause of disease, either a representative sample or a purposive sample can be used. - Correct Answers ✅true A simple random sample has certain assumptions. Which of the options below is an assumption underlying a simple random sample (Select all that apply)?

• The probability of being selected is based on having

specific characteristics

• Selection into sample is independent between each

member

• The prevalence of health indicators will always be at least

25%

• Probability of selection is the same for everyone - Correct

Answers ✅b. Selection into sample is independent between each member

• Probability of selection is the same for everyone

The mean blood pressure in a sample of people from a population is 110 over 70. For the sample to be representative of the overall population, the overall

population mean would have to be: - Correct Answers

✅Similar to 110 over 70 1 / 3

MPH 6011 Final (cont) Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025) A design feature in experimental studies that creates equal probability in treatment assignment is what? - Correct Answers ✅randomization

T/F: One purpose of randomization is to eliminate differences

in measured and unmeasured characteristics between the treated and untreated groups in the study. - Correct Answers ✅true

The primary purpose of a double blind study is to: - Correct

Answers ✅Avoid provider bias and participant bias Fluoride was introduced into the water supply of Town A on January 1, 2000. A study was conducted to compare new occurrence of cavities in children ages 3-10 years living in two towns (Town A and Town B). The towns are located 10 miles apart. New Cavities in children were measured 5 years after fluoride was introduced into the water supply. Fluoride in water reduced cavities. What is the best answer for the type

of study design: - Correct Answers ✅Natural experiment

Which of the following statements is true about analytic and descriptive epidemiology (select only one)? - Correct Answers ✅Analytic epidemiology compares health events between two or more groups to identify causes of those health events 2 / 3

MPH 6011 Final (cont) Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025) A study on the prevalence of diabetes is conducted by randomly selecting 500 people from Pitt county and measuring A1c levels to determine the prevalence of diabetes. What is being described? - Correct Answers ✅taking a simple random sample A study is conducted by recruiting 100 students aged 11-15 years old from an urban middle school and another 100 students aged 11-15 years old from a rural middle school.

Students are randomized to one of two groups: 1) participate

in an afterschool program focusing on exercise and nutrition or 2) do their usual after school activity whatever it may be.What is being described? - Correct Answers ✅Randomization of an intervention program which of the following measures of association are calculated using the incidence proportion in an exposed group and an incidence proportion in an unexposed group (select all that apply)?

• risk difference
• rate difference
• odds difference
• risk ratio
• rate ratio
• / 3