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experimental variable

experimental variable

4.9
A condition or factor that people change on purpose to see effects
  • noun
  • /ɪkˌspɛrɪˈmɛntəl ˈvɛrɪəbl/
  • Specialized
translation icon : variable experimental
  • In the study, the researchers adjusted the experimental variable to see how it influenced the results.
  • effect of experimental variable

Examples

  • By moving a small part of the ecosystem into the laboratory, experimental variables can be controlled more effectively than in the actual ecosystem.

    Academic text (1995)
  • In conclusion, the aforementioned results indicate that we successfully manipulated the experimental variables.

    Academic text (2001)
  • The experimental variable, Skill, is as defined above.

    Academic text (2003)
  • The only significant effect of consequences emerged in the interaction with the three other experimental variables.

    Academic text (2001)
  • The experimental variables for H2 are the expert system and contract choice.

    Academic text (2003)
  • With the pretest score used as the covariate, such an analysis shows the effect of experimental variables.

    Academic text (1997)
  • There was no effect for the experimental variable on perspective-taking (p > .50).

    Academic text (2000)
  • The experimental variable for H1 is skill measured multidimensionally based on task requirements.

    Academic text (2003)
  • The analyses in Table 5 were repeated (not shown) using Perskill instead of Skill as the experimental variable.

    Academic text (2003)
  • To understand the impact of temperature, the team changed the experimental variable during the experiment.

Synonyms

experimental condition
vsexperimental variable
  • Specialized
1 4.9

A part of an experiment where researchers change one thing to see its effect compared with a control group

is a measurable factor whose values are changed or observed to see effects

Surface Forms

Morphology

experimental + variable

The meaning is directly built from 'experimental' (related to experiments) modifying 'variable' (an element that can assume values), so a learner who knows both words can infer it refers to a variable used or manipulated in an experiment. This noun-modifier composition is a common, transparent pattern in English (and in many other languages), making the MWE immediately understandable at B1 level.

Etymology

Experimental variable comes from work in a lab: imagine a scientist changing one thing, the variable, during an experiment, the experimental part, to watch what happens. So it means 'a thing you change on purpose to see its effect'.