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NR 503 Epidemiology Midterm Questions Answers (Version 1) NR 503: Population Health, Epidemiology & Statistical Principles, Chamberlain. CA$22.40   Add to cart
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NR 503 Epidemiology Midterm Questions Answers (Version 1) NR 503: Population Health, Epidemiology & Statistical Principles, Chamberlain.
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NR 503 Epidemiology Midterm Questions Answers (Version 1) NR 503: Population Health, Epidemiology & Statistical Principles, Chamberlain.

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  • May 9, 2023
  • 14
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers

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  • nr 503 epidemiology midterm questions answers version 1 nr 503 population health
  • epidemiology amp statistical principles
  • chamberlain

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NR 503 Week 4 Midterm Exam
NR 503: Population Health, Epidemiology &
Statistical Principles

, Question 1
Which of the following statements best describe efficacy?


 It is an estimate of the benefit of treatment under ideal conditions
 It is an estimate of the reduction of disease in treated groups



Question 2
A study is conducted for a pharmaceutical agent that has shown promise for reducing heart disease
among women. In order to more fully test the agent, an additional study is done restricting the
participants to be r&omized to those who have a history of hypertension. Which of the following
advantages cannot be claimed by the researchers?


 The generalizability of the study is increased



Question 3
What is the main advantage of the r&omization of the 168 study participants to one of the two drug
treatment groups?



 Reduces the potential for selection bias in allocation of treatment group



Question 4
After entry into the study, patients were first classified into three groups, those who had a previous
AMI, those with a first AMI who were at high risk for other cardiovascular diseases such as congestive
heart failure, & those with a first AMI who were at low risk for other cardiovascular diseases. Which
term best describes the study design?

 R&omized clinical trial with stratified r&omization



Question 5
After assignment to treatment group, 77% of those in the placebo group were men, while 80% of
those in the drug X group were men. Which statement is most likely to be true?

 R&omization was successful since the investigators did not alter the selection of participants in either
group in order to ensure equal percentages of men

Question 6
A preliminary analysis was conducted after 6 months & found that 87% of participants in the placebo
group & 85% of those in the drug X group had taken more than 90% of their prescribed dosages.
Which statement best describes this finding?

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