The process of selecting a subset of a population for a study is known as?

MNS 2024

Nursing Research & Statistics

Easy

Appeared in: MNS 2024

Explanation

Sampling is the statistical process of selecting a representative subset of a population for a research study.
The primary purpose of sampling is to allow researchers to make inferences and generalize findings about a large population by studying a smaller, more manageable group.
It is a fundamental and crucial stage in the research process, as the quality of the sample directly impacts the validity and reliability of the study's outcomes.
An appropriate sampling strategy saves time, money, and resources while enabling the collection of accurate data.

Option A: Survey research is a method of data collection, such as using questionnaires or interviews. It is what you do with a sample, not how you select it.
Option B: Representation (or representativeness) is a desired quality or characteristic of a sample. It describes how well the sample mirrors the larger population, but it is not the process of selecting the sample.
Option C: Triangulation is a research strategy used to enhance the validity and credibility of findings by combining multiple methods, theories, or data sources. It is unrelated to the selection of study participants.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Research Methodology: Sampling Process as background academic context rather than a clinical decision trigger.
Understanding sampling is essential for nurses to practice evidence-based care. It allows them to critically evaluate the quality of research studies and determine if the findings are applicable to their own patient populations.
Nurses often participate in or conduct research in clinical settings. Knowledge of sampling helps in designing studies that produce valid and generalizable results, ultimately improving patient care.
What if? If a study used a 'convenience sample' (a non-probability method) of nursing students to test a new educational intervention, a nurse should be cautious about applying the findings to experienced nurses in a specialized ICU, as the sample is not representative of that population.

How to Approach the Question

First, break down the question stem. The key phrase is 'process of selecting a subset of a population'. This asks for the name of a specific action or procedure in research.
Evaluate each option against this definition.
Option A, 'Survey research', is a method for collecting data, not selecting subjects. Eliminate it.
Option B, 'Representation', is a quality or goal of a sample, not the process of creating one. Eliminate it.
Option C, 'Triangulation', is a validation strategy using multiple sources, which is different from selecting participants. Eliminate it.
Option D, 'Sampling', is the precise term for the process of selecting a subset from a larger population. This directly matches the question's definition.

Concept Tested & Keywords

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E6 NursingResearch Sukhpal Kaur p. 244-246

E6 NursingResearch Suresh Sharma 5e Part 1 pp. 233-235, 265-267