Word.ws English Dictionary

effect size

effect size noun: a measure of the strength or magnitude of the effect of an independent variable on a dependent variable in an experiment or a quasi-experiment.

Noun

effect size (plural effect sizes)

  1. A measure of the strength or magnitude of the effect of an independent variable on a dependent variable in an experiment or a quasi-experiment.
    • He spent a year breaking down the 45 studies Stapel produced at Tilburg and cataloguing their individual aberrations, noting where the effect size – a standard measure of the difference between the two groups in an experiment – seemed suspiciously large, […]2017 February 1, Stephen Buranyi, “The high-tech war on science fraud”, in The Guardian
    Synonyms:
    treatment effect, ATE

Synonyms of effect size

  • treatment effect
  • ATE

Forms of effect size

pluraleffect sizes

Questions about effect size

What does effect size mean?
Effect size means a measure of the strength or magnitude of the effect of an independent variable on a dependent variable in an experiment or a quasi-experiment.
What part of speech is effect size?
Effect size is a noun.
What is the plural of effect size?
The plural of effect size is effect sizes.

Words near effect size in the dictionary

  1. effascination
  2. effascinations
  3. effay
  4. EFFDS
  5. effect
  6. effect size
  7. effect sizes
  8. effectance
  9. effectances
  10. effectatious
  11. effected

Source and license

Adapted from Wiktionary: effect size (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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