NURS 5366 Module 10 Exam V2 | NURS
5366 Principles of Research in Nursing |
Actual Q&A with Rationale (NURS5366
Module 10 Exam) | The University of Texas
at Arlington
1. A researcher is evaluating the reliability of a new survey tool. Which coefficient would
indicate the strongest internal consistency for a newly developed instrument?
A. 0.55
B. 0.85
C. 0.62
D. 1.20
Answer: B
Rationale: Cronbach’s alpha is the standard measure used to assess internal consistency in
nursing research. For new instruments, a coefficient of 0.70 or higher is generally
acceptable, while 0.80 or higher is preferred for established tools. A value of 0.85
represents high reliability, whereas values above 1.0 are mathematically impossible in this
context.
2. When a researcher uses a scale that consistently weighs participants two pounds heavier
than their actual weight, what type of error is occurring?
A. Random error
,B. Standard error
C. Systematic error
D. Normal distribution error
Answer: C
Rationale: Systematic error occurs when measurement values are consistently biased in a
specific direction. Unlike random error, which fluctuates unpredictably, systematic error is
often caused by an improperly calibrated instrument. This type of error affects the validity
of the data because the observed score deviates from the true score in a predictable
pattern.
3. Which level of measurement provides the highest level of mathematical precision and
includes an absolute zero point?
A. Nominal
B. Ordinal
C. Ratio
D. Interval
Answer: C
Rationale: Ratio measurement is the most sophisticated level of measurement in research.
It possesses all the qualities of nominal, ordinal, and interval scales, with the addition of a
, meaningful absolute zero point. Examples in nursing include weight, height, and blood
pressure, where zero actually indicates the absence of the property.
4. To determine if two different observers are coding behaviors in a consistent manner, the
researcher should calculate which of the following?
A. Split-half reliability
B. Content validity
C. Construct validity
D. Interrater reliability
Answer: D
Rationale: Interrater reliability is essential when data collection involves subjective
observation or categorization by multiple researchers. It measures the degree of agreement
between different raters using the same instrument. Ensuring high interrater reliability
minimizes the risk of observer bias and increases the credibility of the study’s findings.
5. A nurse researcher wants to ensure that a tool truly measures the concept of ‘Nursing
Compassion’ rather than ‘Nursing Knowledge.’ This refers to:
A. Alternate forms
B. Stability
C. Homogeneity
D. Construct validity
5366 Principles of Research in Nursing |
Actual Q&A with Rationale (NURS5366
Module 10 Exam) | The University of Texas
at Arlington
1. A researcher is evaluating the reliability of a new survey tool. Which coefficient would
indicate the strongest internal consistency for a newly developed instrument?
A. 0.55
B. 0.85
C. 0.62
D. 1.20
Answer: B
Rationale: Cronbach’s alpha is the standard measure used to assess internal consistency in
nursing research. For new instruments, a coefficient of 0.70 or higher is generally
acceptable, while 0.80 or higher is preferred for established tools. A value of 0.85
represents high reliability, whereas values above 1.0 are mathematically impossible in this
context.
2. When a researcher uses a scale that consistently weighs participants two pounds heavier
than their actual weight, what type of error is occurring?
A. Random error
,B. Standard error
C. Systematic error
D. Normal distribution error
Answer: C
Rationale: Systematic error occurs when measurement values are consistently biased in a
specific direction. Unlike random error, which fluctuates unpredictably, systematic error is
often caused by an improperly calibrated instrument. This type of error affects the validity
of the data because the observed score deviates from the true score in a predictable
pattern.
3. Which level of measurement provides the highest level of mathematical precision and
includes an absolute zero point?
A. Nominal
B. Ordinal
C. Ratio
D. Interval
Answer: C
Rationale: Ratio measurement is the most sophisticated level of measurement in research.
It possesses all the qualities of nominal, ordinal, and interval scales, with the addition of a
, meaningful absolute zero point. Examples in nursing include weight, height, and blood
pressure, where zero actually indicates the absence of the property.
4. To determine if two different observers are coding behaviors in a consistent manner, the
researcher should calculate which of the following?
A. Split-half reliability
B. Content validity
C. Construct validity
D. Interrater reliability
Answer: D
Rationale: Interrater reliability is essential when data collection involves subjective
observation or categorization by multiple researchers. It measures the degree of agreement
between different raters using the same instrument. Ensuring high interrater reliability
minimizes the risk of observer bias and increases the credibility of the study’s findings.
5. A nurse researcher wants to ensure that a tool truly measures the concept of ‘Nursing
Compassion’ rather than ‘Nursing Knowledge.’ This refers to:
A. Alternate forms
B. Stability
C. Homogeneity
D. Construct validity
