Tag Archives: A/B test

Data Tables: The scourge of falsely significant results #MRX

Histogram of sepal widths for Iris versicolor ...

Image via Wikipedia

Who doesn’t have fond thoughts of 300 page data tabulation reports! Page after page of crosstab after crosstab, significance test after significance test. Oh, it’s a wonderful thing and it’s easy as pie (mmmm…. pie) to run your fingers down the rows and columns to identify all of the differences that are significant. This one is different from B, D, F, and G. That one is different from D, E, and H. Oh, the abundance of surprise findings! Continue reading →

%d bloggers like this: