dependent variable
MediumTechnical / Academic
Definition
Meaning
In an experiment, the variable that is measured or observed; it's hypothesized to change in response to manipulation of the independent variable.
In research and statistics, the outcome or response being studied, whose value depends on other factors. In mathematics, a variable whose value is determined by one or more other variables.
Linguistics
Semantic Notes
This is a compound noun where 'dependent' is an adjective modifying 'variable'. Its meaning is highly specific to scientific and quantitative research contexts.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling follows national conventions for 'dependent' vs. 'dependant' (noun form only). The term is equally common in both varieties within academic contexts.
Connotations
Same technical, neutral connotation.
Frequency
Equal frequency in academic and research publications in both varieties.
Vocabulary
Collocations
Grammar
Valency Patterns
The dependent variable [verb of measurement/change] (e.g., increased, decreased, was measured).[Independent variable] affects/influences/determines the dependent variable.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “The 'Y' on the graph (informal, in graphing contexts)”
Usage
Context Usage
Business
Rare. Possibly in market research contexts, e.g., 'Our dependent variable was customer purchase intent.'
Academic
Extremely common. Found in research papers, theses, and methodology textbooks across sciences and social sciences.
Everyday
Virtually never used.
Technical
Core term in experimental design, statistics, data science, and econometrics.
Examples
By Part of Speech
verb
British English
- Researchers sought to dependent-variable the outcomes. (NOT STANDARD; 'dependent variable' is not used as a verb.)
American English
- You cannot dependent variable the data. (NOT STANDARD; 'dependent variable' is not used as a verb.)
adverb
British English
- The results were measured dependent-variable-wise. (Highly contrived, not standard.)
American English
- The data was analyzed dependent-variable-ly. (Not a standard adverb form.)
adjective
British English
- The dependent-variable data showed a clear trend. (Hyphenated compound adjective)
- They examined the dependent variable measurements.
American English
- We focused on the dependent-variable analysis. (Hyphenated compound adjective)
- The dependent variable outcome was significant.
Examples
By CEFR Level
- In our science project, plant growth was the dependent variable we measured.
- The score on the test is the dependent variable.
- The study's main dependent variable was participant reaction time, which changed based on sleep deprivation.
- Economists modelled GDP growth as the dependent variable, influenced by several independent factors.
- The researchers operationalised their dependent variable as a composite index of wellbeing, measured across five validated sub-scales.
- A hierarchical regression was performed to ascertain which predictors accounted for the most variance in the dependent variable.
Learning
Memory Aids
Mnemonic
DEPENDENT Variable DEPENDS on what you do to the independent one. Think: Does it Depend? Yes -> Dependent Variable.
Conceptual Metaphor
CAUSE AND EFFECT (The independent variable is the 'cause', the dependent variable is the 'effect' or 'result').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid literal translation that implies 'subordinate' in a non-scientific sense. The established term is 'зависимая переменная'.
Common Mistakes
- Using it interchangeably with 'independent variable'.
- Incorrectly stating the independent variable 'depends' on the dependent variable.
- Using in non-technical contexts where 'result' or 'outcome' is more appropriate.
Practice
Quiz
Which of the following best describes a dependent variable?
FAQ
Frequently Asked Questions
Yes, studies can have multiple dependent variables. These are sometimes analysed separately or using multivariate techniques.
In most contexts, yes, they are synonyms. 'Response variable' is common in statistics, while 'dependent variable' is more general in experimental design.
The dependent variable is conventionally placed on the vertical axis (the y-axis) of a graph.
A hypothesis makes a specific prediction about how the dependent variable will change when the independent variable is manipulated.