NUR 350 | NUR350 Exam 1: Research in Nursing -
WCU Updated and Latest Questions and Correct
Answers with Rationale
1. What is the primary goal of nursing research in the clinical setting?
A. To reduce the cost of healthcare services for the facility
B. To ensure that all nurses have equal workloads
C. To provide a basis for hospital administrative decisions
D. To develop a scientific body of knowledge for nursing practice
Correct Answer: D
Rationale: Nursing research is a systematic process intended to validate and refine
existing knowledge. It focuses on developing a scientific foundation that guides clinical
decision-making. By generating evidence-based findings, research directly improves
patient safety and quality of care. This distinguishes nursing as a professional discipline
with its own unique body of knowledge. Ultimately, the goal is to enhance nursing
interventions and optimize health outcomes across populations.
2. In the PICOT format for clinical questions, what does the ‘I’ represent?
A. Investigation of the problem
B. Implementation of a plan
C. Institutional protocol
D. Intervention or interest area
Correct Answer: D
Rationale: The PICOT framework is a standard tool used to structure clinical research
questions. The letter ‘I’ specifically refers to the intervention or the main area of interest
being studied. This could include a specific treatment, a diagnostic test, or a patient
experience. Defining this component clearly helps researchers narrow their focus to a
specific action. A well-defined intervention is crucial for comparing results against a
control group.
3. Which type of research design is considered the ‘gold standard’ for determining cause and
effect?
A. Correlational design
B. Phenomenological design
C. Case study design
,D. Randomized Controlled Trial (RCT)
Correct Answer: D
Rationale: Randomized Controlled Trials are considered Level I evidence in the hierarchy
of research. They utilize random assignment to minimize bias and ensure that groups are
comparable at the start. By controlling variables, researchers can more confidently
attribute outcomes to the specific intervention. This design provides the most rigorous test
for the efficacy of a treatment. Consequently, RCTs serve as the primary foundation for
many evidence-based practice guidelines.
4. A researcher is studying the lived experience of mothers who have lost a child to cancer.
Which research tradition is most appropriate?
A. Phenomenology
B. Grounded Theory
C. Ethnography
D. Experimental
Correct Answer: A
Rationale: Phenomenology is a qualitative research approach that focuses on the lived
experience of individuals. It seeks to understand the essence of a phenomenon from the
perspective of those who have experienced it. This method is ideal for exploring complex
human emotions and social situations. Researchers use in-depth interviews to gather rich,
descriptive data from participants. The end goal is to provide a deep understanding of what
a particular experience means to the people involved.
5. What is the main difference between a systematic review and a meta-analysis?
A. A systematic review includes only qualitative studies
B. A meta-analysis uses statistical methods to combine results from multiple studies
C. A systematic review is performed by only one researcher
D. A meta-analysis is a summary of a single experimental study
Correct Answer: B
Rationale: Both systematic reviews and meta-analyses involve a comprehensive search of
the literature to answer a specific question. A systematic review summarizes the findings of
various studies in a qualitative or narrative way. In contrast, a meta-analysis applies
statistical techniques to pool data from several studies into a single effect size. This
mathematical integration increases the power of the findings and provides a more precise
estimate of an intervention’s effect. Therefore, meta-analyses are often viewed as the
highest level of evidence.
, 6. Which ethical principle from the Belmont Report ensures that research subjects are treated
fairly and not exploited?
A. Beneficence
B. Non-maleficence
C. Justice
D. Respect for Persons
Correct Answer: C
Rationale: The principle of justice requires that the benefits and burdens of research are
distributed equitably among all groups. It prevents researchers from using vulnerable
populations simply because they are easily accessible. Participants should be selected
based on reasons directly related to the research problem being studied. This principle
ensures that no group is unfairly targeted for risky research or denied potential benefits.
Ethical research must maintain a balance between the risks to individuals and the benefits
to society.
7. In a study measuring the effect of music therapy on post-operative pain levels, what is the
independent variable?
A. The surgical procedure performed
B. The use of music therapy
C. The level of pain reported by the patient
D. The age of the patient population
Correct Answer: B
Rationale: The independent variable is the factor that the researcher manipulates or
introduces to see its effect. In this scenario, music therapy is the intervention being tested
to determine its impact. It is the ‘cause’ in a cause-and-effect relationship being
investigated by the researcher. The dependent variable would be the pain levels, which are
expected to change based on the intervention. Distinguishing between these variables is
fundamental to understanding the structure of a quantitative study.
8. What is the purpose of an Institutional Review Board (IRB)?
A. To fund research projects in the hospital
B. To ensure that research follows the scientific method
C. To publish research findings in professional journals
D. To protect the rights and welfare of human research subjects
Correct Answer: D
WCU Updated and Latest Questions and Correct
Answers with Rationale
1. What is the primary goal of nursing research in the clinical setting?
A. To reduce the cost of healthcare services for the facility
B. To ensure that all nurses have equal workloads
C. To provide a basis for hospital administrative decisions
D. To develop a scientific body of knowledge for nursing practice
Correct Answer: D
Rationale: Nursing research is a systematic process intended to validate and refine
existing knowledge. It focuses on developing a scientific foundation that guides clinical
decision-making. By generating evidence-based findings, research directly improves
patient safety and quality of care. This distinguishes nursing as a professional discipline
with its own unique body of knowledge. Ultimately, the goal is to enhance nursing
interventions and optimize health outcomes across populations.
2. In the PICOT format for clinical questions, what does the ‘I’ represent?
A. Investigation of the problem
B. Implementation of a plan
C. Institutional protocol
D. Intervention or interest area
Correct Answer: D
Rationale: The PICOT framework is a standard tool used to structure clinical research
questions. The letter ‘I’ specifically refers to the intervention or the main area of interest
being studied. This could include a specific treatment, a diagnostic test, or a patient
experience. Defining this component clearly helps researchers narrow their focus to a
specific action. A well-defined intervention is crucial for comparing results against a
control group.
3. Which type of research design is considered the ‘gold standard’ for determining cause and
effect?
A. Correlational design
B. Phenomenological design
C. Case study design
,D. Randomized Controlled Trial (RCT)
Correct Answer: D
Rationale: Randomized Controlled Trials are considered Level I evidence in the hierarchy
of research. They utilize random assignment to minimize bias and ensure that groups are
comparable at the start. By controlling variables, researchers can more confidently
attribute outcomes to the specific intervention. This design provides the most rigorous test
for the efficacy of a treatment. Consequently, RCTs serve as the primary foundation for
many evidence-based practice guidelines.
4. A researcher is studying the lived experience of mothers who have lost a child to cancer.
Which research tradition is most appropriate?
A. Phenomenology
B. Grounded Theory
C. Ethnography
D. Experimental
Correct Answer: A
Rationale: Phenomenology is a qualitative research approach that focuses on the lived
experience of individuals. It seeks to understand the essence of a phenomenon from the
perspective of those who have experienced it. This method is ideal for exploring complex
human emotions and social situations. Researchers use in-depth interviews to gather rich,
descriptive data from participants. The end goal is to provide a deep understanding of what
a particular experience means to the people involved.
5. What is the main difference between a systematic review and a meta-analysis?
A. A systematic review includes only qualitative studies
B. A meta-analysis uses statistical methods to combine results from multiple studies
C. A systematic review is performed by only one researcher
D. A meta-analysis is a summary of a single experimental study
Correct Answer: B
Rationale: Both systematic reviews and meta-analyses involve a comprehensive search of
the literature to answer a specific question. A systematic review summarizes the findings of
various studies in a qualitative or narrative way. In contrast, a meta-analysis applies
statistical techniques to pool data from several studies into a single effect size. This
mathematical integration increases the power of the findings and provides a more precise
estimate of an intervention’s effect. Therefore, meta-analyses are often viewed as the
highest level of evidence.
, 6. Which ethical principle from the Belmont Report ensures that research subjects are treated
fairly and not exploited?
A. Beneficence
B. Non-maleficence
C. Justice
D. Respect for Persons
Correct Answer: C
Rationale: The principle of justice requires that the benefits and burdens of research are
distributed equitably among all groups. It prevents researchers from using vulnerable
populations simply because they are easily accessible. Participants should be selected
based on reasons directly related to the research problem being studied. This principle
ensures that no group is unfairly targeted for risky research or denied potential benefits.
Ethical research must maintain a balance between the risks to individuals and the benefits
to society.
7. In a study measuring the effect of music therapy on post-operative pain levels, what is the
independent variable?
A. The surgical procedure performed
B. The use of music therapy
C. The level of pain reported by the patient
D. The age of the patient population
Correct Answer: B
Rationale: The independent variable is the factor that the researcher manipulates or
introduces to see its effect. In this scenario, music therapy is the intervention being tested
to determine its impact. It is the ‘cause’ in a cause-and-effect relationship being
investigated by the researcher. The dependent variable would be the pain levels, which are
expected to change based on the intervention. Distinguishing between these variables is
fundamental to understanding the structure of a quantitative study.
8. What is the purpose of an Institutional Review Board (IRB)?
A. To fund research projects in the hospital
B. To ensure that research follows the scientific method
C. To publish research findings in professional journals
D. To protect the rights and welfare of human research subjects
Correct Answer: D
