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Nursing QUESTION #9195
Question 1
A Head Nurse is evaluating a research instrument. The tool consistently produces the same results when administered repeatedly under the same conditions. This property is called:
  • Validity
  • Reliability✔️
  • Sensitivity
  • Specificity
Correct Answer Explanation
Correct Answer: B — Reliability

Key measurement concepts:
ConceptDefinition
ReliabilityConsistency and stability of measurements over repeated testing
ValidityAccuracy — does the tool measure what it claims to measure?
SensitivityAbility to correctly identify true positives
SpecificityAbility to correctly identify true negatives
Important relationship: A tool can be reliable without being valid (consistently wrong), but a tool cannot be valid without being reliable. Reliability is a necessary but not sufficient condition for validity.