Course HLTH-4200-2,Principles of Epidemiology.2018 Summer Qtr 05/29-08/19-PT3
Test HLTH_4200_Week6_Exam
Started 7/5/18 7:03 PM
Submitted 7/5/18 7:43
... [Show More] PM
Due Date 7/9/18 1:59 AM
Status Completed
Attempt Score 120 out of 125 points
Time Elapsed 39 minutes out of 4 hours
Instructions Please answer each question below and click Submit when you have completed the Quiz.
Results
Displayed
Submitted Answers, Correct Answers, Feedback
Question 1
5 out of 5 points
Statistical power is the ability of a study to demonstrate an association if one exists
Selected Answer: True
Correct Answer: True
Response
Feedback:
For a discussion of this topic, see pps. 354-355 and 373 of your textbook.
Question 2
5 out of 5 points
Which of the following IS NOT a characteristic that would make a disease appropriate for screening?
Selected Answer:
The positive predictive value of the screening test should be low.
Correct Answer:
The positive predictive value of the screening test should be low.
Response
Feedback:
see Chapter 11, p. 415 of your text
Question 3
5 out of 5 points
You are interested in finding out whether middle-aged men who have irregular heartbeats are at greater risk of
developing a myocardial infarction (heart attack) than men whose heartbeats are regular. Electrocardiogram
(ECG) examinations are performed on all male office employees 35 years of age or older who work for oil
companies in Houston. The ECG tracings are classified as irregular or regular. Five years later, myocardial
infarction rates are compared between those with and those without baseline ECG irregularities.
This is an example of what type of study?
Selected Answer:
Prospective cohort
Correct Answer:
Prospective cohort
Response
Feedback:
See Ch. 6,7, and 8—p. 301
Question 4
5 out of 5 points
The physical examination records of the incoming freshman class of 1935 at the University of Minnesota were
examined in 1980 to see whether their recorded height and weight at the time of admission to the university are
related to their chance of developing coronary heart disease by 1980.
This is an example of what type of study?
Selected Answer:
Retrospective cohort
Correct Answer:
Retrospective cohort
Response
Feedback:
See Ch. 6, 7, and 8—p. 302-393
Question 5
5 out of 5 points
Research participants were children enrolled in a health maintenance organization. At 18 months of age each
child was randomly assigned to one of two groups. Each group was given one of two types of vaccine against
Haemophilus influenza. Parents were asked to record any side effects on a card and mail it back after two weeks.
This study would be characterized as:
Selected Answer:
Clinical trial
Correct Answer:
Clinical trial
Response Feedback: See Chapters 6, 7, and 8 (pp. 262-264) of your text.
Question 6
5 out of 5 points
Research participants with a confirmed diagnosis of carpal tunnel syndrome were compared to a comparable
group without carpal tunnel syndrome. Both groups were asked about their prior occupational and recreational
exposures.
This study could be characterized as [Show Less]