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Search Engine Land article: “Statistical Significance”

My article at Search Engine Land, “Statistical Significance: Not Just For Geeks Anymore” [1], notes that formerly esoteric mathematical concepts like statistical significance are rapidly becoming part of the mainstream in search marketing.

Unfortunately, some popular web-based tools for calculating statistical significance for A/B ‘split’ tests are flawed and give erroneous results.

To find out which tools I’m referring to and to find out how much information is necessary to calculate statistical significance for your tests, please check out my article at Search Engine Land [1].

About Bradd Libby

Bradd easily becomes obsessed with small details. He can barely make it through a conversation without drawing a graph of something. He lives in the woods on the side of a hill in Norway. Bradd doesn't willingly wear shoes. He makes maps of places that don't exist. He picks up small shiny things he finds on the ground. He devolves into violent shouting matches with himself. He takes things apart to find out how they work but then can't figure out how to put them back together again. He also writes at Search Engine Land [7], Search Engine Journal [8] and his personal blog [9].