AIIMS Raipur lecturer 2021
Nursing Research & Statistics
Easy
The extent to which an instrument consistently measures a concept is known as:
Appeared in: AIIMS Raipur lecturer 2021
Explanation
- Reliability is the core principle of consistency in measurement.
- It refers to the degree to which a research instrument produces stable and consistent results over repeated administrations.
- A reliable tool yields similar outcomes when used multiple times under the same conditions, ensuring the dependability of the data collected.
- For example, a reliable blood pressure cuff will give consistent readings in a stable patient.
Why Other Options Were Wrong
- Option A: Inactivity is not a term used in the context of research methodology or measurement principles. It has no relevance to the properties of a research instrument.
- Option B: Objectivity refers to the absence of researcher bias in collecting and interpreting data. While important, it is distinct from consistency. A measurement can be objective but not consistent (unreliable).
- Option C: Relativity is a concept primarily from physics (Einstein's theory of relativity) and is not a standard term used to describe the properties of a measurement instrument in nursing or social sciences research.
Related Visual
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Principles of Measurement in Research as background academic context rather than a clinical decision trigger.
- Nurses rely on evidence-based practice, which is built on sound research. Understanding concepts like reliability helps nurses critically appraise studies and determine if the findings are trustworthy.
- In clinical practice, nurses use various instruments (e.g., pain scales, pressure ulcer risk scales, vital signs monitors). It is crucial that these tools are reliable to ensure consistent and accurate patient assessment and monitoring.
- What if? If a nurse uses a pain scale that is not reliable, one nurse might score a patient's pain as 3/10 while another scores it as 7/10 for the same condition. This inconsistency can lead to inadequate pain management and poor patient outcomes.
How to Approach the Question
- First, identify the key phrase in the question stem: 'consistently measures'.
- Recognize that this is a definition-based question related to research terminology.
- Scan the options to see which term relates to the concept of consistency.
- Eliminate 'Inactivity' and 'Relativity' as they are not standard terms in research measurement.
- Differentiate between 'Objectivity' (lack of bias) and 'Reliability' (consistency).
- Select 'Reliability' as the term that directly corresponds to the idea of an instrument producing consistent results upon repeated use.
Concept Tested & Keywords
- Concept Tested: Principles of Measurement in Research
- Stem keywords: instrument, consistently measures, concept
- Lead-in keywords: known as
Question ID
QJhiEccS35LjnkUb_9PkkJ
Reference Book
E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) pp. 3569-3571, 2850-2852
E6 NursingResearch Suresh Sharma 5e Part 2 p. 36-38
Practise the full AIIMS Raipur lecturer 2021
Attempt every question from this paper in a timed mock, then review the full solution for each one.
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