HESI RN RESEARCH ACCURATE COMPREHENSIVE
PRACTICE EXAM WITH ALL POSSIBLE APPROVED
WELL ELABORATED PRACTICE QUESTIONS AND
100% CORRECT VERIFIED ANSWERS WITH
DETAILED RATIONALES PLUS EXPERT ANSWER
KEY (100% CORRECT VERIFIED SOLUTIONS) 2026-
2027 CURRENTLY UPDATED VERSION Q&A
GUARANTEED PASS A+ INSTANT DOWNLOAD PDF
1. A nurse researcher is planning a study to examine the effect of a new wound
care dressing on healing time. The researcher randomly assigns participants to
either the new dressing group or the standard dressing group. This design is best
described as:
A. Quasi-experimental
B. Correlational
C. Experimental
D. Descriptive
Correct Answer: C. Experimental
Rationale: An experimental design requires random assignment of subjects to
treatment and control groups, which allows for the determination of cause-and-
effect relationships. This is the defining feature that distinguishes it from quasi-
experimental and non-experimental designs.
2. Which level of evidence, according to the Johns Hopkins Nursing Evidence-Based
Practice model, provides the strongest support for clinical decision-making?
A. Level I
B. Level II
,C. Level III
D. Level IV
Correct Answer: A. Level I
Rationale: Level I evidence consists of systematic reviews of randomized controlled
trials (RCTs) or meta-analyses, which synthesize the highest quality evidence.
These provide the most reliable basis for practice changes.
3. A researcher is using a Likert scale to measure patient satisfaction. The scale
ranges from "strongly disagree" to "strongly agree." This type of data is best
described as:
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: B. Ordinal
Rationale: Ordinal data are categorical with a meaningful order or ranking but
without equal intervals between values. Likert scales are classic examples of
ordinal data because the distance between "agree" and "strongly agree" is not
necessarily equal.
4. In a research study, the variable that is manipulated by the researcher is called
the:
A. Dependent variable
B. Confounding variable
C. Independent variable
D. Extraneous variable
Correct Answer: C. Independent variable
Rationale: The independent variable is the cause or intervention that the
researcher manipulates to observe its effect. The dependent variable is the
outcome measured to assess the effect of the manipulation.
5. A nurse is reading a research article that reports a p-value of 0.03. The
researcher set the alpha level at 0.05. The correct interpretation of this finding is:
A. The results are statistically significant, and the null hypothesis is rejected.
B. The results are not statistically significant, and the null hypothesis is retained.
C. There is a 3% chance that the results are clinically significant.
,D. There is a 97% chance that the findings are due to sampling error.
Correct Answer: A. The results are statistically significant, and the null
hypothesis is rejected.
Rationale: A p-value less than the alpha level (0.03 < 0.05) indicates statistical
significance. This means there is less than a 5% probability that the observed
results are due to chance, so the null hypothesis is rejected.
6. Which type of sampling method ensures that every member of the population
has an equal chance of being selected for a study?
A. Convenience sampling
B. Purposive sampling
C. Simple random sampling
D. Quota sampling
Correct Answer: C. Simple random sampling
Rationale: Simple random sampling gives every member of the population an
equal and independent chance of being selected. This technique minimizes
selection bias and enhances the representativeness of the sample.
7. A nurse researcher wants to understand the lived experience of patients with
chronic pain. Which qualitative research approach is most appropriate for this
aim?
A. Grounded theory
B. Ethnography
C. Phenomenology
D. Case study
Correct Answer: C. Phenomenology
Rationale: Phenomenology is the study of lived experiences and how individuals
make meaning of their experiences. It is the method of choice for exploring
subjective phenomena such as chronic pain, grief, or hope.
8. The ability of a research instrument to measure what it is intended to measure
is referred to as:
A. Reliability
B. Validity
C. Objectivity
D. Sensitivity
, Correct Answer: B. Validity
Rationale: Validity addresses the accuracy of an instrument. It determines
whether the tool actually measures the concept it claims to measure. Common
types include content, criterion, and construct validity.
9. Which statement about the Belmont Report is accurate?
A. It established the first code of ethics for nursing research.
B. It outlines three basic ethical principles: respect for persons, beneficence, and
justice.
C. It was created in response to the Tuskegee Syphilis Study.
D. Both B and C are correct.
Correct Answer: D. Both B and C are correct.
Rationale: The Belmont Report (1979) set forth the three principles of respect for
persons, beneficence, and justice. It was indeed developed in response to ethical
violations like the Tuskegee Syphilis Study.
10. A study reports a relative risk (RR) of 2.5 for developing pressure injuries in
patients who are bedridden compared to those who are mobile. The correct
interpretation is:
A. Bedridden patients are 2.5 times more likely to develop pressure injuries.
B. Bedridden patients have a 2.5% higher risk of pressure injuries.
C. The risk of pressure injuries is 2.5 times lower in bedridden patients.
D. The finding is not clinically significant.
Correct Answer: A. Bedridden patients are 2.5 times more likely to develop
pressure injuries.
Rationale: A relative risk (risk ratio) of 2.5 indicates that the incidence of the
outcome is 2.5 times greater in the exposed group compared to the unexposed
group.
11. A nurse is appraising a qualitative study. The criterion of dependability is most
closely related to which aspect of quantitative research?
A. Validity
B. Reliability
C. Generalizability
D. Objectivity
Correct Answer: B. Reliability
PRACTICE EXAM WITH ALL POSSIBLE APPROVED
WELL ELABORATED PRACTICE QUESTIONS AND
100% CORRECT VERIFIED ANSWERS WITH
DETAILED RATIONALES PLUS EXPERT ANSWER
KEY (100% CORRECT VERIFIED SOLUTIONS) 2026-
2027 CURRENTLY UPDATED VERSION Q&A
GUARANTEED PASS A+ INSTANT DOWNLOAD PDF
1. A nurse researcher is planning a study to examine the effect of a new wound
care dressing on healing time. The researcher randomly assigns participants to
either the new dressing group or the standard dressing group. This design is best
described as:
A. Quasi-experimental
B. Correlational
C. Experimental
D. Descriptive
Correct Answer: C. Experimental
Rationale: An experimental design requires random assignment of subjects to
treatment and control groups, which allows for the determination of cause-and-
effect relationships. This is the defining feature that distinguishes it from quasi-
experimental and non-experimental designs.
2. Which level of evidence, according to the Johns Hopkins Nursing Evidence-Based
Practice model, provides the strongest support for clinical decision-making?
A. Level I
B. Level II
,C. Level III
D. Level IV
Correct Answer: A. Level I
Rationale: Level I evidence consists of systematic reviews of randomized controlled
trials (RCTs) or meta-analyses, which synthesize the highest quality evidence.
These provide the most reliable basis for practice changes.
3. A researcher is using a Likert scale to measure patient satisfaction. The scale
ranges from "strongly disagree" to "strongly agree." This type of data is best
described as:
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: B. Ordinal
Rationale: Ordinal data are categorical with a meaningful order or ranking but
without equal intervals between values. Likert scales are classic examples of
ordinal data because the distance between "agree" and "strongly agree" is not
necessarily equal.
4. In a research study, the variable that is manipulated by the researcher is called
the:
A. Dependent variable
B. Confounding variable
C. Independent variable
D. Extraneous variable
Correct Answer: C. Independent variable
Rationale: The independent variable is the cause or intervention that the
researcher manipulates to observe its effect. The dependent variable is the
outcome measured to assess the effect of the manipulation.
5. A nurse is reading a research article that reports a p-value of 0.03. The
researcher set the alpha level at 0.05. The correct interpretation of this finding is:
A. The results are statistically significant, and the null hypothesis is rejected.
B. The results are not statistically significant, and the null hypothesis is retained.
C. There is a 3% chance that the results are clinically significant.
,D. There is a 97% chance that the findings are due to sampling error.
Correct Answer: A. The results are statistically significant, and the null
hypothesis is rejected.
Rationale: A p-value less than the alpha level (0.03 < 0.05) indicates statistical
significance. This means there is less than a 5% probability that the observed
results are due to chance, so the null hypothesis is rejected.
6. Which type of sampling method ensures that every member of the population
has an equal chance of being selected for a study?
A. Convenience sampling
B. Purposive sampling
C. Simple random sampling
D. Quota sampling
Correct Answer: C. Simple random sampling
Rationale: Simple random sampling gives every member of the population an
equal and independent chance of being selected. This technique minimizes
selection bias and enhances the representativeness of the sample.
7. A nurse researcher wants to understand the lived experience of patients with
chronic pain. Which qualitative research approach is most appropriate for this
aim?
A. Grounded theory
B. Ethnography
C. Phenomenology
D. Case study
Correct Answer: C. Phenomenology
Rationale: Phenomenology is the study of lived experiences and how individuals
make meaning of their experiences. It is the method of choice for exploring
subjective phenomena such as chronic pain, grief, or hope.
8. The ability of a research instrument to measure what it is intended to measure
is referred to as:
A. Reliability
B. Validity
C. Objectivity
D. Sensitivity
, Correct Answer: B. Validity
Rationale: Validity addresses the accuracy of an instrument. It determines
whether the tool actually measures the concept it claims to measure. Common
types include content, criterion, and construct validity.
9. Which statement about the Belmont Report is accurate?
A. It established the first code of ethics for nursing research.
B. It outlines three basic ethical principles: respect for persons, beneficence, and
justice.
C. It was created in response to the Tuskegee Syphilis Study.
D. Both B and C are correct.
Correct Answer: D. Both B and C are correct.
Rationale: The Belmont Report (1979) set forth the three principles of respect for
persons, beneficence, and justice. It was indeed developed in response to ethical
violations like the Tuskegee Syphilis Study.
10. A study reports a relative risk (RR) of 2.5 for developing pressure injuries in
patients who are bedridden compared to those who are mobile. The correct
interpretation is:
A. Bedridden patients are 2.5 times more likely to develop pressure injuries.
B. Bedridden patients have a 2.5% higher risk of pressure injuries.
C. The risk of pressure injuries is 2.5 times lower in bedridden patients.
D. The finding is not clinically significant.
Correct Answer: A. Bedridden patients are 2.5 times more likely to develop
pressure injuries.
Rationale: A relative risk (risk ratio) of 2.5 indicates that the incidence of the
outcome is 2.5 times greater in the exposed group compared to the unexposed
group.
11. A nurse is appraising a qualitative study. The criterion of dependability is most
closely related to which aspect of quantitative research?
A. Validity
B. Reliability
C. Generalizability
D. Objectivity
Correct Answer: B. Reliability
