ANSWERS AND DETAILED RATIONALES
(BRAND NEW)
1. Which of the following is an example of a cyclical trend in epidemiology?
A) The birth rate throughout the history of the United States
B) The predicted death rate in the United States for 2025
C) The rate of RSV admissions in the fall of each year in the western United States
D) The rate of RSV-related deaths annually in the United States - CorreCt Answer - C
2. Which measure could not be determined using data from a cross-sectional study of
obesity and type II diabetes?
A) An estimate of the percentage of the population that exhibits both obesity and type II
diabetes
B) An estimate of the magnitude of the association between obesity and type II diabetes
C) An estimate of the strength of the cause-and-effect relationship between obesity and
type II diabetes
D) An estimate of the percentage of the population that exhibits neither obesity nor type
II diabetes - CorreCt Answer: C
3. A nurse researcher interested in the relationship between radiation exposure and
cancer divides participants into two groups: those who are regularly exposed to higher-
than-average levels of radiation on the job and those who are not. The nurse will follow
both groups to see how many in each group eventually
Copyright © 2019 by Jones & Bartlett Learning, LLC, an Ascend Learning Company
Evidence-Based Practice for Nurses: Appraisal and Application of Research, Fourth
Edition
,Nola A. Schmidt, PhD, RN, CNE, and Janet M. Brown, PhD, RN
develop a form of cancer. What type of study is the nurse designing?
A) Cross-sectional
B) Case-control
C) Intervention
D) Cohort - CorreCt Answer : D
4. A nurse researcher is designing an intervention study with two participant groups.
Which of the following participant groups would be most appropriate for an
intervention study of a new medication for patients with diagnosed hypertension?
A) Group A receives the new medication for hypertension; Group B receives a new
medication for hyperlipidemia.
B) Group A receives the new medication for hypertension; Group B receives
acupuncture and personal training to treat hypertension.
C) Group A receives the new medication for hypertension; Group B receives a placebo
medication.
D) Group A receives the new medication for hypertension; Group B does not have
hypertension but is treated for depression. - CorreCt Answer: C
5. If a population is identified to be high-risk for an untreatable condition, medical
professionals have an ethical responsibility to screen individuals for the condition.
A) True
B) False - CorreCt Answer: B
6. If a screening test results in a significant number of false-negative results, the
sensitivity of the test needs to be improved.
, A) True
B) False - CorreCt Answer: A
7. A researcher is studying absorption rates of natural and synthetic vitamins. The
researcher has three groups of randomly assigned subjects: one group that will receive
the natural vitamin, one group that will receive the synthetic vitamin, and a control
group that will receive a placebo.
Which type of quantitative design is the researcher using?
A) Experimental design
B) Quasi-experimental design
C) Nonexperimental design
D) Meta-analysis - CorreCt Answer: A
8. Which of the following would most accurately determine causality?
A) An experiment in which researchers manipulate the dependent variable
B) An experiment in which researchers manipulate multiple independent variables
C) An experiment in which researchers study the variables in chronological order
D) An experiment in which researchers produce results that cannot be duplicated -
CorreCt Answer: C
9. Following extensive research and examination of multiple patients, an oncologist
asserts that environmental contamination is the most probable cause of elevated cancer
rates observed in the population of a specific area. Which of the following statements
best describes why the oncologist states the findings as a probability rather than a
certainty?
A) The oncologist did not use the most reliable research techniques.