A split test is when a marketer compares the effectiveness of two elements. They could be:

  • Headlines
  • Price points
  • Guarantees
  • A full stop compared with an exclamation mark
  • Different fonts
  • Different colours on the call-to-action button

Actually, marketers split-test all sorts of things.

UX designer and blogger Paul Olyslager ran a couple of A/B tests on his headline copywriting to try to optimise the conversion rate of his blog and found that one particular word that improved the rate by up to 110%.

Paul tested the copywriting in his list of ‘Popular Articles’ section and found this:

Original text: Trending Stories
Variation 1: Most popular articles (conversion dropped by 27.7%)
Variation 2: Popular this month (-11.4%)
Variation 3: Most popular stories (+5.5%)
Variation 4: Popular articles (+110.6%)

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