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A/B test

[ey-bee test]
noun Also called A/B experiment, split test.
  1. Digital Technology. a comparison of two or more versions of a web page or app in simultaneous use to assess which is the optimized version for achieving a specified design goal or performance metric.
  2. an experiment that compares two or more versions of a product or strategy to determine empirically which version is superior: The A/B test showed a more positive customer response to email marketing with short subject lines.
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verb (used with object) Also A/B-test [ey-bee-test] /ˈeɪˈbiˌtɛst/, split-test [split-test] /ˈsplɪtˌtɛst/.
  1. to subject (a website, app, product, or strategy) to a comparison of two or more versions in simultaneous use to assess which is the optimized version for achieving a specified design goal or performance metric.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018