NURS 5366 – Test 2 Verified Questions and Correct answers 2025_2026
1. Which of the following best defines quantitative research?
A. Research focused on understanding human experiences
B. Research that collects and analyzes numerical data
C. Research that explores themes and patterns
D. Research that is purely theoretical
Answer: B
Explanation: Quantitative research emphasizes numerical data, statistical analysis, and
measurable outcomes.
2. In research, the term “population” refers to:
A. The group of people selected for a study
B. The entire group about which the researcher wants to draw conclusions
C. The sample from which data is collected
D. Individuals who volunteer for the study
Answer: B
Explanation: The population is the complete set of individuals or elements that the study
intends to generalize.
3. Which of the following is an example of a dependent variable?
A. Type of nursing intervention
B. Patient satisfaction score
C. Age of participants
D. Gender of participants
Answer: B
Explanation: The dependent variable is the outcome that is measured to see if it changes due
to the independent variable.
4. What is the primary purpose of a literature review in research?
,A. To describe research methodology
B. To summarize and evaluate existing knowledge
C. To collect raw data
D. To report study findings
Answer: B
Explanation: A literature review identifies gaps, supports the rationale, and provides context
for the study.
5. Which of the following describes a null hypothesis?
A. A statement predicting a specific effect
B. A statement of no relationship or difference between variables
C. A tentative explanation for observed phenomena
D. A theory that guides the research design
Answer: B
Explanation: The null hypothesis posits that no effect or relationship exists between the
variables studied.
6. Which type of research design is best for exploring cause-and-effect relationships?
A. Descriptive
B. Correlational
C. Experimental
D. Qualitative
Answer: C
Explanation: Experimental designs manipulate the independent variable to determine its effect
on the dependent variable.
7. Reliability in research refers to:
A. The truthfulness of the data
B. Consistency or repeatability of measurements
C. How well the study represents the population
D. The ethical conduct of the study
, Answer: B
Explanation: Reliability ensures that repeated measurements under similar conditions yield
similar results.
8. What is the purpose of informed consent in research?
A. To recruit as many participants as possible
B. To ensure participants voluntarily agree with full understanding of risks and benefits
C. To protect researchers from legal issues
D. To maintain the confidentiality of the study
Answer: B
Explanation: Informed consent is an ethical requirement ensuring participants understand the
study and voluntarily participate.
9. Which sampling method involves selecting every nth participant from a population
list?
A. Convenience sampling
B. Simple random sampling
C. Systematic sampling
D. Snowball sampling
Answer: C
Explanation: Systematic sampling selects participants at regular intervals (e.g., every 5th
person).
10. Internal validity refers to:
A. The generalizability of study findings
B. The accuracy of measuring what the study intends to measure
C. How well the results reflect the population
D. The ethical rigor of the research
Answer: B
Explanation: Internal validity indicates the degree to which observed effects are truly due to
the independent variable, not other factors.
11. Which of the following best describes qualitative research?
1. Which of the following best defines quantitative research?
A. Research focused on understanding human experiences
B. Research that collects and analyzes numerical data
C. Research that explores themes and patterns
D. Research that is purely theoretical
Answer: B
Explanation: Quantitative research emphasizes numerical data, statistical analysis, and
measurable outcomes.
2. In research, the term “population” refers to:
A. The group of people selected for a study
B. The entire group about which the researcher wants to draw conclusions
C. The sample from which data is collected
D. Individuals who volunteer for the study
Answer: B
Explanation: The population is the complete set of individuals or elements that the study
intends to generalize.
3. Which of the following is an example of a dependent variable?
A. Type of nursing intervention
B. Patient satisfaction score
C. Age of participants
D. Gender of participants
Answer: B
Explanation: The dependent variable is the outcome that is measured to see if it changes due
to the independent variable.
4. What is the primary purpose of a literature review in research?
,A. To describe research methodology
B. To summarize and evaluate existing knowledge
C. To collect raw data
D. To report study findings
Answer: B
Explanation: A literature review identifies gaps, supports the rationale, and provides context
for the study.
5. Which of the following describes a null hypothesis?
A. A statement predicting a specific effect
B. A statement of no relationship or difference between variables
C. A tentative explanation for observed phenomena
D. A theory that guides the research design
Answer: B
Explanation: The null hypothesis posits that no effect or relationship exists between the
variables studied.
6. Which type of research design is best for exploring cause-and-effect relationships?
A. Descriptive
B. Correlational
C. Experimental
D. Qualitative
Answer: C
Explanation: Experimental designs manipulate the independent variable to determine its effect
on the dependent variable.
7. Reliability in research refers to:
A. The truthfulness of the data
B. Consistency or repeatability of measurements
C. How well the study represents the population
D. The ethical conduct of the study
, Answer: B
Explanation: Reliability ensures that repeated measurements under similar conditions yield
similar results.
8. What is the purpose of informed consent in research?
A. To recruit as many participants as possible
B. To ensure participants voluntarily agree with full understanding of risks and benefits
C. To protect researchers from legal issues
D. To maintain the confidentiality of the study
Answer: B
Explanation: Informed consent is an ethical requirement ensuring participants understand the
study and voluntarily participate.
9. Which sampling method involves selecting every nth participant from a population
list?
A. Convenience sampling
B. Simple random sampling
C. Systematic sampling
D. Snowball sampling
Answer: C
Explanation: Systematic sampling selects participants at regular intervals (e.g., every 5th
person).
10. Internal validity refers to:
A. The generalizability of study findings
B. The accuracy of measuring what the study intends to measure
C. How well the results reflect the population
D. The ethical rigor of the research
Answer: B
Explanation: Internal validity indicates the degree to which observed effects are truly due to
the independent variable, not other factors.
11. Which of the following best describes qualitative research?
