Bad Data: The 3 validity threats that make your tests look conclusive (when they are deeply flawed)

If you’ve tuned into past MarketingExperiments Web clinics, you’ve seen some pretty impressive gains:     141% increase in conversion     12% more revenue across an entire ecommerce website     $4.9 million in additional sales pipeline growth (in only eight months) And we’ve shared transferable principles to help you achieve similar gains yourself. But for this Web clinic, the MarketingExperiments team took a different approach and showed you not just what we did to get these types of results, but gave you an inside look at how we did it.