NORCET 9 Mains - 2025: Systematic sampling is related to which field of study?

NORCET 9 Mains - 2025

Nursing Research & Statistics

Easy

Appeared in: NORCET 9 Mains - 2025

Explanation

Systematic sampling is a core concept within the field of statistics, specifically as a probability sampling technique.
It provides a structured, methodical way to select a representative subset from a larger population for research purposes.
The method involves calculating a sampling interval (k) and selecting every k-th element from a list after a random start.
Its principles and application are foundational to research design and data collection, which are governed by statistical rules.

Option A: Nursing procedures are hands-on clinical tasks related to patient care (e.g., wound dressing, medication administration). Systematic sampling is a research method used to gather data, not a clinical procedure.
Option C: Laboratory techniques involve processes performed in a lab to analyze biological specimens (e.g., polymerase chain reaction, blood typing). Systematic sampling is a method for selecting participants for a study, not for analyzing samples in a lab.
Option D: The word 'only' makes this option incorrect. While epidemiology heavily relies on sampling methods like systematic sampling to study disease prevalence and incidence, this technique is a general statistical tool used in many other fields like sociology, quality control, and market research.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Systematic Sampling Method as background academic context rather than a clinical decision trigger.
Nurses often participate in or conduct research to improve patient outcomes. Understanding sampling methods like systematic sampling is crucial for evaluating the quality and validity of research evidence.
A nurse manager might use systematic sampling to audit patient charts for quality assurance, for example, by selecting every 10th patient record from the month's admissions to review for documentation compliance.
What if? If a list of the population has a hidden pattern that aligns with the sampling interval (e.g., a list of couples ordered 'male, female, male, female...'), systematic sampling could lead to a biased, non-representative sample (e.g., only selecting females). In such cases, simple random or stratified sampling would be a better choice.

How to Approach the Question

First, identify the key term in the question: 'Systematic sampling'.
Recall or deduce the definition of this term. It's a method for selecting a sample from a population.
Consider the given options and determine which field of study encompasses methods for sampling and data collection.
'Nursing procedures' and 'Laboratory techniques' are specific, hands-on tasks, not broad methodologies.
'Epidemiology only' is too restrictive; research methods are often used across many fields.
Conclude that 'Statistical methods' is the correct umbrella term for techniques like sampling, making it the best fit.

Concept Tested & Keywords

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E6 NursingResearch Sukhpal Kaur pp. 250-252, 254-256