NSG 3000 Exam 2 | Nursing Research & EBP
VERIFIED EXAM PREP & SUCCESS GUIDE (2026/2027) - GALEN COLLEGE
(1) A researcher is interested in the lived experience of patients surviving a sudden cardiac
arrest. Which research design is most appropriate?
A. Randomized Controlled Trial (RCT)
B. Phenomenological study
C. Correlational study
D. Quasi-experimental study
CORRECT ANSWER: B
Research Rationale: Phenomenology is a qualitative design used to explore the 'lived
experience' of individuals regarding a specific phenomenon.
(2) Which of the following is a characteristic of a 'Quasi-experimental' research design?
A. Random assignment to groups.
B. Absence of a control group or lack of randomization.
C. Use of focus groups for data collection.
D. Analysis of narrative data.
CORRECT ANSWER: B
Research Rationale: Quasi-experimental designs involve an intervention but lack one of the key
elements of a true experiment, usually random assignment or a control group.
,(3) A researcher selects every 10th person on a list of registered nurses in the state to
participate in a study. This is an example of which sampling method?
A. Convenience sampling
B. Purposive sampling
C. Systematic sampling
D. Snowball sampling
CORRECT ANSWER: C
Research Rationale: Systematic sampling involves selecting elements from an ordered list at a
predetermined interval (every 'k-th' element).
(4) Which type of sampling is most common in qualitative research where participants are
selected because they possess specific characteristics?
A. Random sampling
B. Purposive sampling
C. Stratified sampling
D. Cluster sampling
CORRECT ANSWER: B
Research Rationale: Purposive (or purposeful) sampling allows researchers to hand-pick
participants who are 'information-rich' regarding the study's topic.
,(5) The degree to which an instrument measures what it is intended to measure is known
as:
A. Reliability
B. Validity
C. Internal consistency
D. Generalizability
CORRECT ANSWER: B
Research Rationale: Validity refers to the accuracy of the tool. Reliability refers to the
consistency or stability of the measurement over time.
(6) A researcher uses Cronbach’s alpha to test the consistency of a new survey. This is a
measure of:
A. External validity
B. Inter-rater reliability
C. Internal consistency reliability
D. Construct validity
CORRECT ANSWER: C
Research Rationale: Cronbach’s alpha is a statistical test used to evaluate the internal
consistency (reliability) of a multi-item scale.
, (7) What is the primary responsibility of an Institutional Review Board (IRB)?
A. To ensure the research study is profitable for the hospital.
B. To protect the rights and welfare of human subjects.
C. To check the researcher's grammar in the final report.
D. To publish the results of the study in a medical journal.
CORRECT ANSWER: B
Research Rationale: The IRB's primary mandate is the ethical review of research to ensure
human subjects are protected from harm and that informed consent is obtained.
(8) In a quantitative study, the 'p-value' is 0.02. If the alpha level was set at 0.05, what should
the researcher conclude?
A. The results are not statistically significant.
B. The null hypothesis should be rejected.
C. There is no relationship between the variables.
D. The study needs more participants to be valid.
CORRECT ANSWER: B
Research Rationale: A p-value less than the alpha level (typically 0.05) indicates statistical
significance, meaning the null hypothesis is rejected.
VERIFIED EXAM PREP & SUCCESS GUIDE (2026/2027) - GALEN COLLEGE
(1) A researcher is interested in the lived experience of patients surviving a sudden cardiac
arrest. Which research design is most appropriate?
A. Randomized Controlled Trial (RCT)
B. Phenomenological study
C. Correlational study
D. Quasi-experimental study
CORRECT ANSWER: B
Research Rationale: Phenomenology is a qualitative design used to explore the 'lived
experience' of individuals regarding a specific phenomenon.
(2) Which of the following is a characteristic of a 'Quasi-experimental' research design?
A. Random assignment to groups.
B. Absence of a control group or lack of randomization.
C. Use of focus groups for data collection.
D. Analysis of narrative data.
CORRECT ANSWER: B
Research Rationale: Quasi-experimental designs involve an intervention but lack one of the key
elements of a true experiment, usually random assignment or a control group.
,(3) A researcher selects every 10th person on a list of registered nurses in the state to
participate in a study. This is an example of which sampling method?
A. Convenience sampling
B. Purposive sampling
C. Systematic sampling
D. Snowball sampling
CORRECT ANSWER: C
Research Rationale: Systematic sampling involves selecting elements from an ordered list at a
predetermined interval (every 'k-th' element).
(4) Which type of sampling is most common in qualitative research where participants are
selected because they possess specific characteristics?
A. Random sampling
B. Purposive sampling
C. Stratified sampling
D. Cluster sampling
CORRECT ANSWER: B
Research Rationale: Purposive (or purposeful) sampling allows researchers to hand-pick
participants who are 'information-rich' regarding the study's topic.
,(5) The degree to which an instrument measures what it is intended to measure is known
as:
A. Reliability
B. Validity
C. Internal consistency
D. Generalizability
CORRECT ANSWER: B
Research Rationale: Validity refers to the accuracy of the tool. Reliability refers to the
consistency or stability of the measurement over time.
(6) A researcher uses Cronbach’s alpha to test the consistency of a new survey. This is a
measure of:
A. External validity
B. Inter-rater reliability
C. Internal consistency reliability
D. Construct validity
CORRECT ANSWER: C
Research Rationale: Cronbach’s alpha is a statistical test used to evaluate the internal
consistency (reliability) of a multi-item scale.
, (7) What is the primary responsibility of an Institutional Review Board (IRB)?
A. To ensure the research study is profitable for the hospital.
B. To protect the rights and welfare of human subjects.
C. To check the researcher's grammar in the final report.
D. To publish the results of the study in a medical journal.
CORRECT ANSWER: B
Research Rationale: The IRB's primary mandate is the ethical review of research to ensure
human subjects are protected from harm and that informed consent is obtained.
(8) In a quantitative study, the 'p-value' is 0.02. If the alpha level was set at 0.05, what should
the researcher conclude?
A. The results are not statistically significant.
B. The null hypothesis should be rejected.
C. There is no relationship between the variables.
D. The study needs more participants to be valid.
CORRECT ANSWER: B
Research Rationale: A p-value less than the alpha level (typically 0.05) indicates statistical
significance, meaning the null hypothesis is rejected.
