NR546 ACTUAL FINAL EXAM UPDATED 2024
QUESTIONS AND ANSWERS ALL CORRECT!!!
Course
NR546
Question 1:
What is the difference between quantitative and qualitative research in nursing?
Answer:
Quantitative research involves collecting and analyzing numerical data to test hypotheses,
measure variables, and determine relationships using statistical methods. In contrast,
qualitative research focuses on exploring experiences, meanings, and processes through non-
numerical data (such as interviews, focus groups, or observations) to provide in-depth insights
into patient care and nursing practice.
Question 2:
Define evidence-based practice (EBP) and explain its importance in nursing.
Answer:
Evidence-based practice is the process of integrating the best available research evidence with
clinical expertise and patient preferences to guide healthcare decisions. It is important in
nursing because it leads to improved patient outcomes, enhances the quality and safety of care,
and supports cost-effective healthcare practices.
Question 3:
What are the key ethical principles in nursing research, and why are they important?
Answer:
Key ethical principles include:
Respect for persons: Ensuring informed consent and honoring the autonomy of
participants.
Beneficence: Maximizing benefits while minimizing harm.
Non-maleficence: Avoiding the infliction of harm.
Justice: Ensuring fairness in the distribution of research benefits and burdens.
These principles are crucial to protect participants’ rights, maintain trust in the research
process, and ensure that studies are conducted responsibly and ethically.
,Question 4:
Explain the concepts of reliability and validity in the context of research instruments.
Answer:
Reliability refers to the consistency of a measurement tool—if repeated under similar
conditions, it should yield the same results.
Validity refers to the accuracy of the tool—whether it measures what it is intended to
measure.
Both are essential for ensuring that research findings are credible and can be trusted to
inform nursing practice.
Question 5:
What distinguishes a randomized controlled trial (RCT) from a quasi-experimental design?
Answer:
A randomized controlled trial (RCT) randomly assigns participants to intervention or control
groups, which minimizes bias and strengthens the ability to make causal inferences. A quasi-
experimental design does not use random assignment, which may introduce confounding
factors and limit causal conclusions, but it can be more practical in real-world settings where
randomization is not feasible.
Question 6:
How do researchers determine the appropriate sample size for a study?
Answer:
Researchers calculate sample size based on several factors:
Expected effect size: The magnitude of the difference or relationship they wish to
detect.
Statistical power: The probability (often set at 80% or 90%) of detecting an effect if one
exists.
Significance level: The probability (commonly set at 0.05) of incorrectly rejecting the null
hypothesis.
Variability in the data: The degree of dispersion in the population.
,Statistical formulas or specialized software are used to ensure that the sample size is sufficient
to detect meaningful differences while controlling for error.
Question 7:
Describe the role and importance of the literature review in the research process.
Answer:
A literature review:
Provides context: It summarizes current knowledge and highlights gaps in existing
research.
Informs the research question: It helps refine and justify the study’s focus.
Guides methodology: It assists in selecting appropriate research designs and methods.
Enhances credibility: It shows that the researcher is knowledgeable about the topic and
builds on previous findings.
Overall, it is a critical step in establishing the foundation for any research project.
Question 8:
What is a systematic review, and how does it differ from a narrative review?
Answer:
A systematic review is a rigorous, methodical, and transparent synthesis of research studies on a
specific question. It follows a predefined protocol, including explicit criteria for study selection
and critical appraisal to minimize bias. In contrast, a narrative review is more descriptive and
less structured, often summarizing the literature without the same level of methodological rigor
or comprehensive search strategy.
Question 9:
Discuss how qualitative research contributes to the development of nursing theory.
Answer:
Qualitative research explores the lived experiences, perceptions, and complex phenomena in
healthcare settings. By gathering rich, detailed data, it uncovers patterns and themes that may
not be evident through quantitative methods. These insights can lead to the development of
new theories or the refinement of existing ones, ultimately informing patient-centered care and
advancing nursing practice.
, Question 10:
Outline the main steps in the research process.
Answer:
The research process typically involves:
1. Identifying and defining the research problem: Recognizing a gap or need in knowledge.
2. Conducting a literature review: Gathering and analyzing existing research.
3. Formulating a research question or hypothesis: Clearly stating what the study intends
to examine.
4. Designing the study: Choosing an appropriate methodology and research design.
5. Collecting data: Using methods like surveys, interviews, or experiments.
6. Analyzing the data: Employing statistical or thematic analysis techniques.
7. Interpreting the results: Relating findings back to the research question and existing
literature.
8. Disseminating the findings: Sharing results through publications, presentations, or
practical implementation.
Question 11:
What is mixed methods research, and what are its advantages in nursing research?
Answer:
Mixed methods research combines both quantitative and qualitative approaches within one
study. This integration allows researchers to validate findings through convergence, capture
richer contextual data, and address research questions that require both statistical trends and
detailed personal experiences.
Question 12:
Describe grounded theory and explain its use in nursing research.
Answer:
Grounded theory is a qualitative research methodology aimed at developing theories grounded
in systematically gathered and analyzed data. In nursing research, it helps explain social
processes or patient experiences by generating a theory directly from observed data rather than
relying on pre-existing theoretical frameworks.
QUESTIONS AND ANSWERS ALL CORRECT!!!
Course
NR546
Question 1:
What is the difference between quantitative and qualitative research in nursing?
Answer:
Quantitative research involves collecting and analyzing numerical data to test hypotheses,
measure variables, and determine relationships using statistical methods. In contrast,
qualitative research focuses on exploring experiences, meanings, and processes through non-
numerical data (such as interviews, focus groups, or observations) to provide in-depth insights
into patient care and nursing practice.
Question 2:
Define evidence-based practice (EBP) and explain its importance in nursing.
Answer:
Evidence-based practice is the process of integrating the best available research evidence with
clinical expertise and patient preferences to guide healthcare decisions. It is important in
nursing because it leads to improved patient outcomes, enhances the quality and safety of care,
and supports cost-effective healthcare practices.
Question 3:
What are the key ethical principles in nursing research, and why are they important?
Answer:
Key ethical principles include:
Respect for persons: Ensuring informed consent and honoring the autonomy of
participants.
Beneficence: Maximizing benefits while minimizing harm.
Non-maleficence: Avoiding the infliction of harm.
Justice: Ensuring fairness in the distribution of research benefits and burdens.
These principles are crucial to protect participants’ rights, maintain trust in the research
process, and ensure that studies are conducted responsibly and ethically.
,Question 4:
Explain the concepts of reliability and validity in the context of research instruments.
Answer:
Reliability refers to the consistency of a measurement tool—if repeated under similar
conditions, it should yield the same results.
Validity refers to the accuracy of the tool—whether it measures what it is intended to
measure.
Both are essential for ensuring that research findings are credible and can be trusted to
inform nursing practice.
Question 5:
What distinguishes a randomized controlled trial (RCT) from a quasi-experimental design?
Answer:
A randomized controlled trial (RCT) randomly assigns participants to intervention or control
groups, which minimizes bias and strengthens the ability to make causal inferences. A quasi-
experimental design does not use random assignment, which may introduce confounding
factors and limit causal conclusions, but it can be more practical in real-world settings where
randomization is not feasible.
Question 6:
How do researchers determine the appropriate sample size for a study?
Answer:
Researchers calculate sample size based on several factors:
Expected effect size: The magnitude of the difference or relationship they wish to
detect.
Statistical power: The probability (often set at 80% or 90%) of detecting an effect if one
exists.
Significance level: The probability (commonly set at 0.05) of incorrectly rejecting the null
hypothesis.
Variability in the data: The degree of dispersion in the population.
,Statistical formulas or specialized software are used to ensure that the sample size is sufficient
to detect meaningful differences while controlling for error.
Question 7:
Describe the role and importance of the literature review in the research process.
Answer:
A literature review:
Provides context: It summarizes current knowledge and highlights gaps in existing
research.
Informs the research question: It helps refine and justify the study’s focus.
Guides methodology: It assists in selecting appropriate research designs and methods.
Enhances credibility: It shows that the researcher is knowledgeable about the topic and
builds on previous findings.
Overall, it is a critical step in establishing the foundation for any research project.
Question 8:
What is a systematic review, and how does it differ from a narrative review?
Answer:
A systematic review is a rigorous, methodical, and transparent synthesis of research studies on a
specific question. It follows a predefined protocol, including explicit criteria for study selection
and critical appraisal to minimize bias. In contrast, a narrative review is more descriptive and
less structured, often summarizing the literature without the same level of methodological rigor
or comprehensive search strategy.
Question 9:
Discuss how qualitative research contributes to the development of nursing theory.
Answer:
Qualitative research explores the lived experiences, perceptions, and complex phenomena in
healthcare settings. By gathering rich, detailed data, it uncovers patterns and themes that may
not be evident through quantitative methods. These insights can lead to the development of
new theories or the refinement of existing ones, ultimately informing patient-centered care and
advancing nursing practice.
, Question 10:
Outline the main steps in the research process.
Answer:
The research process typically involves:
1. Identifying and defining the research problem: Recognizing a gap or need in knowledge.
2. Conducting a literature review: Gathering and analyzing existing research.
3. Formulating a research question or hypothesis: Clearly stating what the study intends
to examine.
4. Designing the study: Choosing an appropriate methodology and research design.
5. Collecting data: Using methods like surveys, interviews, or experiments.
6. Analyzing the data: Employing statistical or thematic analysis techniques.
7. Interpreting the results: Relating findings back to the research question and existing
literature.
8. Disseminating the findings: Sharing results through publications, presentations, or
practical implementation.
Question 11:
What is mixed methods research, and what are its advantages in nursing research?
Answer:
Mixed methods research combines both quantitative and qualitative approaches within one
study. This integration allows researchers to validate findings through convergence, capture
richer contextual data, and address research questions that require both statistical trends and
detailed personal experiences.
Question 12:
Describe grounded theory and explain its use in nursing research.
Answer:
Grounded theory is a qualitative research methodology aimed at developing theories grounded
in systematically gathered and analyzed data. In nursing research, it helps explain social
processes or patient experiences by generating a theory directly from observed data rather than
relying on pre-existing theoretical frameworks.
