ADVANCED NURSING RESEARCH: NSG
5140 FINAL EXAM QUESTIONS AND
ANSWERS
1. A researcher is studying the effect of a new educational intervention on the blood glucose
levels of patients with Type 2 diabetes. What is the independent variable in this study?
A. Blood glucose levels
B. The age of the patients
C. The diagnosis of Type 2 diabetes
D. The educational intervention
Answer: D
Conceptual Explanation: The independent variable is the intervention or factor being
manipulated to observe its effect on the outcome.
2. When a researcher rejects the null hypothesis when it is actually true, which type of error
has occurred?
A. Measurement error
B. Type II error
C. Sampling error
,D. Type I error
Answer: D
Conceptual Explanation: A Type I error occurs when the researcher falsely concludes
there is a significant effect (rejects the null) when there is not.
3. Which level of evidence is considered the highest in the hierarchy of evidence for evidence-
based practice?
A. Single randomized controlled trial
B. Case-control study
C. Expert opinion and clinical guidelines
D. Systematic review or meta-analysis of RCTs
Answer: D
Conceptual Explanation: Systematic reviews and meta-analyses synthesize results from
multiple high-quality studies, providing the strongest evidence.
4. In qualitative research, what is the term for the process of setting aside personal biases
and preconceived notions?
A. Saturation
B. Triangulation
C. Member checking
D. Bracketing
, Answer: D
Conceptual Explanation: Bracketing is a method used, particularly in phenomenology, to
ensure the researcher’s own beliefs do not influence the interpretation of the data.
5. Which statistical test is most appropriate for comparing the means of two independent
groups?
A. Chi-square test
B. Independent samples t-test
C. Pearson’s correlation
D. Analysis of Variance (ANOVA)
Answer: B
Conceptual Explanation: The independent samples t-test is designed to compare the
means of two distinct groups on a continuous variable.
6. A Cronbach’s alpha coefficient of 0.85 indicates what regarding a research instrument?
A. Strong inter-rater reliability
B. Low content validity
C. Weak predictive validity
D. High internal consistency reliability
Answer: D
5140 FINAL EXAM QUESTIONS AND
ANSWERS
1. A researcher is studying the effect of a new educational intervention on the blood glucose
levels of patients with Type 2 diabetes. What is the independent variable in this study?
A. Blood glucose levels
B. The age of the patients
C. The diagnosis of Type 2 diabetes
D. The educational intervention
Answer: D
Conceptual Explanation: The independent variable is the intervention or factor being
manipulated to observe its effect on the outcome.
2. When a researcher rejects the null hypothesis when it is actually true, which type of error
has occurred?
A. Measurement error
B. Type II error
C. Sampling error
,D. Type I error
Answer: D
Conceptual Explanation: A Type I error occurs when the researcher falsely concludes
there is a significant effect (rejects the null) when there is not.
3. Which level of evidence is considered the highest in the hierarchy of evidence for evidence-
based practice?
A. Single randomized controlled trial
B. Case-control study
C. Expert opinion and clinical guidelines
D. Systematic review or meta-analysis of RCTs
Answer: D
Conceptual Explanation: Systematic reviews and meta-analyses synthesize results from
multiple high-quality studies, providing the strongest evidence.
4. In qualitative research, what is the term for the process of setting aside personal biases
and preconceived notions?
A. Saturation
B. Triangulation
C. Member checking
D. Bracketing
, Answer: D
Conceptual Explanation: Bracketing is a method used, particularly in phenomenology, to
ensure the researcher’s own beliefs do not influence the interpretation of the data.
5. Which statistical test is most appropriate for comparing the means of two independent
groups?
A. Chi-square test
B. Independent samples t-test
C. Pearson’s correlation
D. Analysis of Variance (ANOVA)
Answer: B
Conceptual Explanation: The independent samples t-test is designed to compare the
means of two distinct groups on a continuous variable.
6. A Cronbach’s alpha coefficient of 0.85 indicates what regarding a research instrument?
A. Strong inter-rater reliability
B. Low content validity
C. Weak predictive validity
D. High internal consistency reliability
Answer: D
