Revision summary
A variable is a property with more than one value across cases. Independent, dependent, and control variables structure causal claims. They enable hypothesis, measurement, and comparison, as in Durkheim’s suicide rates and survey tables. Operationalisation turns concepts into observable values. A variable remains an index. It is not the whole social relation.
Model answer
Introduction
A variable is a property that takes more than one value across cases. Research proceeds by naming variables, stating how they relate, and measuring those values. Without variables, a study remains a stack of stories that cannot be compared.
Body
Types that matter
- An independent variable is the condition the researcher treats as a presumed cause or grouping factor.
- A dependent variable is the outcome to be explained.
- Control variables are held constant so that a false association is less likely.
- Discrete variables take categories, such as sex or caste group. Continuous variables take degrees, such as income or years of schooling.
- Durkheim treated suicide rates as a social fact that varied with integration and regulation, which is variable analysis at the level of rates.
How they facilitate research
- They turn a vague interest into a hypothesis: as education rises, age at marriage rises, other things equal.
- They allow operationalisation: poverty becomes a consumption line or a multidimensional index, not a mood.
- They make comparison possible across time, region, and group, which is why census and National Family Health Survey tables can be read sociologically.
- They discipline theory. If class is said to explain voting, class must be specified as occupation, income, or relation to surplus.
- Experiments, surveys, and even qualitative coding use variables when they sort cases by presence or absence of a trait.
Cautions
- Reification is the risk: a scale is not the whole of caste or piety.
- Spurious correlation appears when a third variable is ignored.
- Feminist method reminds us that the choice of variables already contains a standpoint.
Flow diagram
flowchart TD Q[Research question] --> V[Named variables] V --> I[Independent] V --> D[Dependent] V --> C[Controls] I --> H[Hypothesis and comparison] D --> H C --> H
Conclusion
Variables are properties that vary. They facilitate research by making hypotheses, measurement, comparison, and control possible. Durkheim’s rates and contemporary surveys show the gain. The gain is lost if the variable is mistaken for the full social relation it only indexes.
Quick related
Students also ask
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What are the characteristics of scientific method? Do you think that scientific method in conducting sociological research is foolproof? Elaborate
Next question in the 2023 paper (Q3). View answer →
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Do qualitative studies avoid variables?
They often avoid numbers. They still sort cases by presence, absence, and degree of traits.
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Is caste a variable?
Caste can be coded as a category in a table. The lived order is a relation, which the code only indexes.
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