NRS 445 Exam 2 V1 | NRS 445 Nursing Research
and Evidence-Based Practice | Actual Q&A with
Rationale (NRS445 Exam 2) | Grand Canyon
University
1. A nurse researcher is designing a study to explore the lived experience of patients surviving
a sudden cardiac arrest. Which qualitative research tradition is most appropriate for this
study?
A. Ethnography
B. Grounded Theory
C. Historical Research
D. Phenomenology
Correct Answer: D
Explanation: Phenomenology is the study of the lived experience of individuals. It aims to
describe the essence of a phenomenon from the perspective of those who have experienced
it. This approach is ideal for understanding personal meanings and human experiences like
surviving cardiac arrest.
2. When evaluating a research study for evidence-based practice, the nurse identifies which
of the following as characteristics of a true experimental design? (Select All That Apply)
A. Randomization of subjects
B. Control group for comparison
,C. Manipulation of an independent variable
D. Collection of qualitative narrative data
E. Large sample size for qualitative saturation
F. Researcher immersion in the natural setting
Correct Answer: A, B, C
Explanation: A true experimental design, often referred to as a Randomized Controlled
Trial (RCT), requires three essential components: randomization, control, and
manipulation. Randomization ensures that every participant has an equal chance of being
assigned to any group, reducing bias. Manipulation involves the researcher active control
over the independent variable to observe its effect on the dependent variable.
3. A researcher is testing a new intervention to reduce post-operative pain. What is the role
of the ‘dependent variable’ in this study?
A. The intervention being tested
B. The population being sampled
C. The outcome that is measured
D. The environmental factor controlled
Correct Answer: C
Explanation: The dependent variable is the outcome or effect that the researcher is
interested in measuring. It is expected to change in response to the manipulation of the
, independent variable. In this specific scenario, the level of post-operative pain is the
dependent variable because it depends on the intervention.
4. In the PICO format for clinical questions, what does the ‘I’ represent?
A. Intervention
B. Implementation
C. Integration
D. Inference
Correct Answer: A
Explanation: The PICO acronym stands for Population, Intervention, Comparison, and
Outcome. The ‘I’ specifically refers to the intervention, treatment, or clinical issue being
investigated. Correctly identifying the intervention is crucial for conducting a focused
literature search.
5. A nurse is reviewing a study that used a convenience sample. What is the primary
limitation of using this sampling method?
A. It is too expensive to implement
B. It increases the risk of sampling bias
C. It requires a complex randomization process
D. It ensures the sample is representative of the population
Correct Answer: B
and Evidence-Based Practice | Actual Q&A with
Rationale (NRS445 Exam 2) | Grand Canyon
University
1. A nurse researcher is designing a study to explore the lived experience of patients surviving
a sudden cardiac arrest. Which qualitative research tradition is most appropriate for this
study?
A. Ethnography
B. Grounded Theory
C. Historical Research
D. Phenomenology
Correct Answer: D
Explanation: Phenomenology is the study of the lived experience of individuals. It aims to
describe the essence of a phenomenon from the perspective of those who have experienced
it. This approach is ideal for understanding personal meanings and human experiences like
surviving cardiac arrest.
2. When evaluating a research study for evidence-based practice, the nurse identifies which
of the following as characteristics of a true experimental design? (Select All That Apply)
A. Randomization of subjects
B. Control group for comparison
,C. Manipulation of an independent variable
D. Collection of qualitative narrative data
E. Large sample size for qualitative saturation
F. Researcher immersion in the natural setting
Correct Answer: A, B, C
Explanation: A true experimental design, often referred to as a Randomized Controlled
Trial (RCT), requires three essential components: randomization, control, and
manipulation. Randomization ensures that every participant has an equal chance of being
assigned to any group, reducing bias. Manipulation involves the researcher active control
over the independent variable to observe its effect on the dependent variable.
3. A researcher is testing a new intervention to reduce post-operative pain. What is the role
of the ‘dependent variable’ in this study?
A. The intervention being tested
B. The population being sampled
C. The outcome that is measured
D. The environmental factor controlled
Correct Answer: C
Explanation: The dependent variable is the outcome or effect that the researcher is
interested in measuring. It is expected to change in response to the manipulation of the
, independent variable. In this specific scenario, the level of post-operative pain is the
dependent variable because it depends on the intervention.
4. In the PICO format for clinical questions, what does the ‘I’ represent?
A. Intervention
B. Implementation
C. Integration
D. Inference
Correct Answer: A
Explanation: The PICO acronym stands for Population, Intervention, Comparison, and
Outcome. The ‘I’ specifically refers to the intervention, treatment, or clinical issue being
investigated. Correctly identifying the intervention is crucial for conducting a focused
literature search.
5. A nurse is reviewing a study that used a convenience sample. What is the primary
limitation of using this sampling method?
A. It is too expensive to implement
B. It increases the risk of sampling bias
C. It requires a complex randomization process
D. It ensures the sample is representative of the population
Correct Answer: B
