NUR 400 Exam 1 | Practice Q&A | 2026/2027 | Nursing Concept
Integration Across the Lifespan | ASU | Graded A+
1. A nursing student is learning about evidence-based practice (EBP). Which
statement best defines EBP in nursing?
A) Basing all clinical decisions solely on nursing textbooks
B) Using the most current research findings to guide clinical decisions
C) Integrating the best available evidence with clinical expertise and patient
preferences
D) Following hospital protocols without questioning their validity
Correct Answer: Integrating the best available evidence with clinical
expertise and patient preferences
Rationale: EBP is the integration of the best research evidence with clinical
expertise and patient values and preferences. This triad ensures that care is
both scientifically sound and patient-centered. The other options are
incomplete or incorrect.
2. A nurse is formulating a clinical question using the PICOT format. What
does the "P" in PICOT represent?
A) Practice
B) Patient population or problem
C) Protocol
D) Procedure
Correct Answer: Patient population or problem
Rationale: PICOT is a mnemonic for developing clinical questions: P = Patient
population or problem, I = Intervention, C = Comparison, O = Outcome, and
T = Time. This structure helps create focused, searchable questions.
,3. A nurse is conducting a literature search for evidence to support a new
wound care protocol. Which type of evidence is considered the highest level
in the evidence hierarchy?
A) Expert opinion
B) Case-control studies
C) Systematic reviews and meta-analyses
D) Qualitative studies
Correct Answer: Systematic reviews and meta-analyses
Rationale: Systematic reviews and meta-analyses synthesize findings from
multiple high-quality studies and represent the highest level of evidence in
the evidence hierarchy. Expert opinion is the lowest level.
4. A nurse is critiquing a research article. Which section of the article
provides the most detailed information about how the study was conducted?
A) Abstract
B) Introduction
C) Methods
D) Discussion
Correct Answer: Methods
Rationale: The Methods section describes the study design, sample, setting,
data collection procedures, and data analysis techniques. This allows the
reader to evaluate the study's validity and replicability.
,5. A nurse researcher is designing a study to examine the relationship
between nurse staffing levels and patient fall rates. This type of study is best
described as:
A) Experimental
B) Descriptive
C) Correlational
D) Qualitative
Correct Answer: Correlational
Rationale: Correlational studies examine relationships between variables
without manipulating them. This design is appropriate for exploring
associations between staffing levels and fall rates. Experimental studies
involve manipulation, descriptive studies describe phenomena, and
qualitative studies explore experiences.
6. A nurse is appraising a research study and evaluating its validity. Which
question is most important for assessing internal validity?
A) Can the findings be generalized to other populations?
B) Did the researchers use a representative sample?
C) Are the results due to the intervention rather than other factors?
D) Were the data collection instruments reliable?
Correct Answer: Are the results due to the intervention rather than other
factors?
Rationale: Internal validity refers to the extent to which study results can be
attributed to the intervention rather than confounding variables.
Generalizability relates to external validity, representativeness relates to
sampling, and reliability relates to measurement.
, 7. A nurse is reviewing a study that reports a p-value of 0.03. The nurse
correctly interprets this as:
A) There is a 3% chance the results are due to chance
B) There is a 97% chance the results are clinically significant
C) The results are statistically significant at the 0.05 level
D) The study has a 3% chance of being valid
Correct Answer: The results are statistically significant at the 0.05 level
Rationale: A p-value of 0.03 indicates that there is a 3% probability that the
results are due to chance. Since this is less than the conventional alpha level
of 0.05, the results are considered statistically significant.
8. A nurse is measuring a patient's pain using a 0-10 numerical rating scale.
This is an example of which level of measurement?
A) Nominal
B) Ordinal
C) Interval
D) Ratio
Correct Answer: Interval
Rationale: The numerical rating scale has equal intervals between points but
no true zero, making it an interval level of measurement. Nominal involves
categories, ordinal involves rank order, and ratio has a true zero.
Integration Across the Lifespan | ASU | Graded A+
1. A nursing student is learning about evidence-based practice (EBP). Which
statement best defines EBP in nursing?
A) Basing all clinical decisions solely on nursing textbooks
B) Using the most current research findings to guide clinical decisions
C) Integrating the best available evidence with clinical expertise and patient
preferences
D) Following hospital protocols without questioning their validity
Correct Answer: Integrating the best available evidence with clinical
expertise and patient preferences
Rationale: EBP is the integration of the best research evidence with clinical
expertise and patient values and preferences. This triad ensures that care is
both scientifically sound and patient-centered. The other options are
incomplete or incorrect.
2. A nurse is formulating a clinical question using the PICOT format. What
does the "P" in PICOT represent?
A) Practice
B) Patient population or problem
C) Protocol
D) Procedure
Correct Answer: Patient population or problem
Rationale: PICOT is a mnemonic for developing clinical questions: P = Patient
population or problem, I = Intervention, C = Comparison, O = Outcome, and
T = Time. This structure helps create focused, searchable questions.
,3. A nurse is conducting a literature search for evidence to support a new
wound care protocol. Which type of evidence is considered the highest level
in the evidence hierarchy?
A) Expert opinion
B) Case-control studies
C) Systematic reviews and meta-analyses
D) Qualitative studies
Correct Answer: Systematic reviews and meta-analyses
Rationale: Systematic reviews and meta-analyses synthesize findings from
multiple high-quality studies and represent the highest level of evidence in
the evidence hierarchy. Expert opinion is the lowest level.
4. A nurse is critiquing a research article. Which section of the article
provides the most detailed information about how the study was conducted?
A) Abstract
B) Introduction
C) Methods
D) Discussion
Correct Answer: Methods
Rationale: The Methods section describes the study design, sample, setting,
data collection procedures, and data analysis techniques. This allows the
reader to evaluate the study's validity and replicability.
,5. A nurse researcher is designing a study to examine the relationship
between nurse staffing levels and patient fall rates. This type of study is best
described as:
A) Experimental
B) Descriptive
C) Correlational
D) Qualitative
Correct Answer: Correlational
Rationale: Correlational studies examine relationships between variables
without manipulating them. This design is appropriate for exploring
associations between staffing levels and fall rates. Experimental studies
involve manipulation, descriptive studies describe phenomena, and
qualitative studies explore experiences.
6. A nurse is appraising a research study and evaluating its validity. Which
question is most important for assessing internal validity?
A) Can the findings be generalized to other populations?
B) Did the researchers use a representative sample?
C) Are the results due to the intervention rather than other factors?
D) Were the data collection instruments reliable?
Correct Answer: Are the results due to the intervention rather than other
factors?
Rationale: Internal validity refers to the extent to which study results can be
attributed to the intervention rather than confounding variables.
Generalizability relates to external validity, representativeness relates to
sampling, and reliability relates to measurement.
, 7. A nurse is reviewing a study that reports a p-value of 0.03. The nurse
correctly interprets this as:
A) There is a 3% chance the results are due to chance
B) There is a 97% chance the results are clinically significant
C) The results are statistically significant at the 0.05 level
D) The study has a 3% chance of being valid
Correct Answer: The results are statistically significant at the 0.05 level
Rationale: A p-value of 0.03 indicates that there is a 3% probability that the
results are due to chance. Since this is less than the conventional alpha level
of 0.05, the results are considered statistically significant.
8. A nurse is measuring a patient's pain using a 0-10 numerical rating scale.
This is an example of which level of measurement?
A) Nominal
B) Ordinal
C) Interval
D) Ratio
Correct Answer: Interval
Rationale: The numerical rating scale has equal intervals between points but
no true zero, making it an interval level of measurement. Nominal involves
categories, ordinal involves rank order, and ratio has a true zero.
