In quantitative studies, concepts are usually referred to as?

DSSSB - 29 August 2019 (Shift-2)

Nursing Research & Statistics

Easy

Appeared in: DSSSB - 29 August 2019 (Shift-2)

Explanation

In quantitative studies, abstract ideas (concepts) are made concrete and measurable so they can be analyzed statistically.
A variable is any quality or characteristic of a person, group, or situation that can take on different values.
Therefore, a concept that is operationalized for measurement in a quantitative study is called a variable.
For instance, the concept 'quality of life' is studied as a variable by measuring it with a specific tool that yields a numerical score.

Option A: Data are the raw facts and figures collected during the study. They are the specific values recorded for a variable, not the variable itself.
Option B: Subjects, also known as study participants, are the individuals from whom the data are collected. They are the source of the information, not the concept being measured.
Option D: Measures are the tools, instruments, or methods (e.g., questionnaires, scales, observation checklists) used to collect data. They are used to quantify the variable but are not the variable itself.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Terminology of concepts in quantitative research methodology as background academic context rather than a clinical decision trigger.
Understanding the distinction between concepts, variables, data, and measures is fundamental for nurses to critically appraise research articles and apply evidence-based practice.
When evaluating a study, a nurse must identify the key variables to understand exactly what was measured and how it relates to patient outcomes, which is essential for determining the study's relevance to their clinical practice.
What if? If a research article studied the concept of 'patient coping' but did not clearly define the variable or the measure used, a nurse would be unable to trust the findings or replicate the intervention because the results would be subjective and unreliable.

How to Approach the Question

First, identify the core of the question: it asks for the specific term used for 'concepts' within the framework of 'quantitative studies'.
Recall the basic components of a research study. A study begins with an abstract idea (concept).
To analyze this idea numerically (quantitatively), it must be converted into something that can be measured and can vary. This is the key function.
Evaluate the options: 'Data' are the results of measurement. 'Subjects' are the people being measured. 'Measures' are the tools for measuring.
Recognize that 'Variable' is the term for the measurable characteristic that represents the abstract concept.
Therefore, conclude that 'Variables' is the correct term for concepts that are defined to be measurable in quantitative research.

Concept Tested & Keywords

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E6 NursingResearch Polit 11e Part 1 p. 57-59

E6 NursingResearch Sukhpal Kaur pp. 96-98, 329-331