NURS 406 Quiz 6
Comprehensive Practice Review
Questions and Answers with Detailed Rationales
Aligned with 2026 | 2027 Undergraduate Nursing Research Standards
Nursing Research Methodologies, Data Collection
& Statistical Appraisal
50 Questions | Five Core Content Domains
Quantitative & Qualitative Designs | Sampling & Power Analysis
Reliability/Validity | Statistical Tests & Critical Appraisal
June 2025 | Academic Review Paper
, NURS 406 Quiz 6 | Research Methodologies & Statistical Appraisal Practice Review
Abstract
This academic review paper presents fifty (50) practice questions designed for the NURS
406 Quiz 6 examination in undergraduate nursing research methodologies, data
collection, and statistical appraisal. The questions span five content domains: (1)
Quantitative Research Designs including experimental, quasi-experimental, and
non-experimental approaches; (2) Qualitative Research Methodologies encompassing
phenomenology, grounded theory, ethnography, and case studies; (3) Sampling Strategies,
Power Analysis, and Participant Recruitment; (4) Data Collection Methods covering
surveys, observations, biophysiological measures, and rigor through reliability and
validity; and (5) Quantitative Data Analysis, Statistical Significance, and Critical
Appraisal of Results. Each question includes the correct answer with an evidence-based
rationale explaining both the correct choice and why alternatives are incorrect.
Content is aligned with 2026–2027 AACN Essentials and contemporary undergraduate
nursing research competencies. Cognitive levels are distributed across recall (30%),
application (50%), and analysis (20%), with scenario-based vignettes comprising 75% of
the item pool. This review provides nursing students with a high-yield preparatory
resource for mastery validation in research methodology and statistical reasoning.
Keywords: nursing research methodologies, quantitative research designs, qualitative
research, sampling strategies, reliability and validity, statistical significance, critical
appraisal, NURS 406, evidence hierarchy, effect size
Page 1
, NURS 406 Quiz 6 | Research Methodologies & Statistical Appraisal Practice Review
Section 1: Quantitative Research Designs (Q1–Q10)
Q1. A nurse researcher wants to determine the causal effect of a new cognitive-behavioral
therapy on anxiety levels in nursing students. The researcher randomly assigns participants
to either the therapy group or a waitlist control group. Which research design is being
used?
A. Quasi-experimental design
B. Randomized controlled trial (RCT)
C. Descriptive correlational design
D. Ex post facto design
Rationale: An RCT requires both manipulation of an independent variable (the therapy) and random
assignment to groups; quasi-experimental lacks random assignment, and correlational/ex post facto
designs do not involve active manipulation.
Q2. A study evaluates the effect of a new fall-prevention protocol on two medical-surgical
units. Unit A receives the protocol, while Unit B continues with standard care. The
researcher did not randomly assign individual patients. This is an example of a:
A. True experimental design
B. Nonequivalent control group quasi-experimental design
C. Crossover design
D. Longitudinal cohort study
Rationale: This is quasi-experimental because the intervention is manipulated but participants
are not randomly assigned (assigned by pre-existing unit); true experiments require randomization
at the individual level.
Q3. In a longitudinal study measuring blood pressure over five years, participants
naturally age, gain weight, and experience life stressors independent of the study
intervention. This natural change in subjects over time is a threat to internal validity
known as:
A. History
B. Maturation
C. Testing effect
D. Instrumentation
Rationale: Maturation refers to biological or psychological changes in participants over time
(aging, fatigue) that could affect outcomes; history refers to external events, and
testing/instrumentation relate to measurement tools.
Q4. A researcher collects data on dietary habits and BMI from a sample of 500 adults at a
single point in time to examine the relationship between the two variables. This study
design is best described as:
A. Cross-sectional correlational
B. Longitudinal prospective
C. Retrospective case-control
D. Solomon four-group
Page 2
Comprehensive Practice Review
Questions and Answers with Detailed Rationales
Aligned with 2026 | 2027 Undergraduate Nursing Research Standards
Nursing Research Methodologies, Data Collection
& Statistical Appraisal
50 Questions | Five Core Content Domains
Quantitative & Qualitative Designs | Sampling & Power Analysis
Reliability/Validity | Statistical Tests & Critical Appraisal
June 2025 | Academic Review Paper
, NURS 406 Quiz 6 | Research Methodologies & Statistical Appraisal Practice Review
Abstract
This academic review paper presents fifty (50) practice questions designed for the NURS
406 Quiz 6 examination in undergraduate nursing research methodologies, data
collection, and statistical appraisal. The questions span five content domains: (1)
Quantitative Research Designs including experimental, quasi-experimental, and
non-experimental approaches; (2) Qualitative Research Methodologies encompassing
phenomenology, grounded theory, ethnography, and case studies; (3) Sampling Strategies,
Power Analysis, and Participant Recruitment; (4) Data Collection Methods covering
surveys, observations, biophysiological measures, and rigor through reliability and
validity; and (5) Quantitative Data Analysis, Statistical Significance, and Critical
Appraisal of Results. Each question includes the correct answer with an evidence-based
rationale explaining both the correct choice and why alternatives are incorrect.
Content is aligned with 2026–2027 AACN Essentials and contemporary undergraduate
nursing research competencies. Cognitive levels are distributed across recall (30%),
application (50%), and analysis (20%), with scenario-based vignettes comprising 75% of
the item pool. This review provides nursing students with a high-yield preparatory
resource for mastery validation in research methodology and statistical reasoning.
Keywords: nursing research methodologies, quantitative research designs, qualitative
research, sampling strategies, reliability and validity, statistical significance, critical
appraisal, NURS 406, evidence hierarchy, effect size
Page 1
, NURS 406 Quiz 6 | Research Methodologies & Statistical Appraisal Practice Review
Section 1: Quantitative Research Designs (Q1–Q10)
Q1. A nurse researcher wants to determine the causal effect of a new cognitive-behavioral
therapy on anxiety levels in nursing students. The researcher randomly assigns participants
to either the therapy group or a waitlist control group. Which research design is being
used?
A. Quasi-experimental design
B. Randomized controlled trial (RCT)
C. Descriptive correlational design
D. Ex post facto design
Rationale: An RCT requires both manipulation of an independent variable (the therapy) and random
assignment to groups; quasi-experimental lacks random assignment, and correlational/ex post facto
designs do not involve active manipulation.
Q2. A study evaluates the effect of a new fall-prevention protocol on two medical-surgical
units. Unit A receives the protocol, while Unit B continues with standard care. The
researcher did not randomly assign individual patients. This is an example of a:
A. True experimental design
B. Nonequivalent control group quasi-experimental design
C. Crossover design
D. Longitudinal cohort study
Rationale: This is quasi-experimental because the intervention is manipulated but participants
are not randomly assigned (assigned by pre-existing unit); true experiments require randomization
at the individual level.
Q3. In a longitudinal study measuring blood pressure over five years, participants
naturally age, gain weight, and experience life stressors independent of the study
intervention. This natural change in subjects over time is a threat to internal validity
known as:
A. History
B. Maturation
C. Testing effect
D. Instrumentation
Rationale: Maturation refers to biological or psychological changes in participants over time
(aging, fatigue) that could affect outcomes; history refers to external events, and
testing/instrumentation relate to measurement tools.
Q4. A researcher collects data on dietary habits and BMI from a sample of 500 adults at a
single point in time to examine the relationship between the two variables. This study
design is best described as:
A. Cross-sectional correlational
B. Longitudinal prospective
C. Retrospective case-control
D. Solomon four-group
Page 2
