GCU NSG 316 EXAM 2 - NURSING
RESEARCH AND EVIDENCE-BASED
PRACTICE
1. A researcher is studying the lived experience of mothers whose children are in neonatal
intensive care. Which qualitative research tradition is most appropriate?
A. Phenomenology
B. Ethnography
C. Grounded Theory
D. Historical Research
Answer: A
Conceptual Explanation: Phenomenology focuses on the lived experience of individuals
regarding a specific phenomenon.
2. Which type of sampling method involves selecting every ‘kth’ case from a list or group?
A. Simple random sampling
B. Stratified random sampling
C. Cluster sampling
,D. Systematic sampling
Answer: D
Conceptual Explanation: Systematic sampling involves the selection of every kth case
from a list, such as every 10th person on a patient registry.
3. In a study testing the effect of a new dressing on wound healing, the wound healing rate is
considered which variable?
A. Independent variable
B. Extraneous variable
C. Dependent variable
D. Confounding variable
Answer: C
Conceptual Explanation: The dependent variable is the outcome or response that the
researcher wants to predict or explain (wound healing).
4. Which threat to internal validity occurs when an external event happens at the same time
as the study and affects the dependent variable?
A. Maturation
B. Testing
C. Selection bias
D. History
, Answer: D
Conceptual Explanation: History refers to events occurring concurrently with the
independent variable that can affect the dependent variable.
5. A researcher uses a Cronbach’s alpha to evaluate a new survey instrument. What is this
measuring?
A. Criterion-related validity
B. Content validity
C. Stability over time
D. Internal consistency reliability
Answer: D
Conceptual Explanation: Cronbach’s alpha is the most commonly used measure of
internal consistency reliability for scales.
6. Which level of evidence is considered the highest in the hierarchy of evidence for practice
decisions?
A. Single Randomized Controlled Trial (RCT)
B. Case-control studies
C. Expert opinion and clinical guidelines
D. Systematic reviews of RCTs
Answer: D
RESEARCH AND EVIDENCE-BASED
PRACTICE
1. A researcher is studying the lived experience of mothers whose children are in neonatal
intensive care. Which qualitative research tradition is most appropriate?
A. Phenomenology
B. Ethnography
C. Grounded Theory
D. Historical Research
Answer: A
Conceptual Explanation: Phenomenology focuses on the lived experience of individuals
regarding a specific phenomenon.
2. Which type of sampling method involves selecting every ‘kth’ case from a list or group?
A. Simple random sampling
B. Stratified random sampling
C. Cluster sampling
,D. Systematic sampling
Answer: D
Conceptual Explanation: Systematic sampling involves the selection of every kth case
from a list, such as every 10th person on a patient registry.
3. In a study testing the effect of a new dressing on wound healing, the wound healing rate is
considered which variable?
A. Independent variable
B. Extraneous variable
C. Dependent variable
D. Confounding variable
Answer: C
Conceptual Explanation: The dependent variable is the outcome or response that the
researcher wants to predict or explain (wound healing).
4. Which threat to internal validity occurs when an external event happens at the same time
as the study and affects the dependent variable?
A. Maturation
B. Testing
C. Selection bias
D. History
, Answer: D
Conceptual Explanation: History refers to events occurring concurrently with the
independent variable that can affect the dependent variable.
5. A researcher uses a Cronbach’s alpha to evaluate a new survey instrument. What is this
measuring?
A. Criterion-related validity
B. Content validity
C. Stability over time
D. Internal consistency reliability
Answer: D
Conceptual Explanation: Cronbach’s alpha is the most commonly used measure of
internal consistency reliability for scales.
6. Which level of evidence is considered the highest in the hierarchy of evidence for practice
decisions?
A. Single Randomized Controlled Trial (RCT)
B. Case-control studies
C. Expert opinion and clinical guidelines
D. Systematic reviews of RCTs
Answer: D
