It’s no secret here that I believe A/B testing is one of the the best ways to help your customer and quiet Avinash Kaushik’s HIPPOs (see Rule #10) (Full Disclosure: As the head of e-commerce, I can be something of a HIPPO myself in my day job. So, in some ways, I know the dangers even more. It’s easy to think you’re really smart when you’ve been doing something for a while – and really cool when a test a.) proves you wrong and b.) makes you a lot of money).
In fact, I’ve talked before about reasons why A/B testing is always the right answer and examples of what an A/B test looks like. But, I’ve also been collecting a number of other posts that make the case for A/B testing. Check ‘em out:
- I’ve talked about how to choose what to A/B test first before. But, I have to say, I love this look at 8 A/B testing case studies from Visual Website Optimizer’s blog.
- FOT (that’s Friend of Thinks) and guest poster Jake Stein of RJMetrics shows an A/B test he conducted for a landing page, complete with a full analysis of what worked best.
- Sometimes, even with lots of data, you’re forced to make a challenging call. GetElastic offers a case study that didn’t quite go as planned. But, even though the GetElastic study didn’t pan out as expected, take particular note of what the team learned.
- Evan Miller gives a quick overview of the math behind A/B testing that’s worth a read. Sure, you can just use calculators like the Teasley set to test your significance. And, admittedly, the math gets a little geeky, but if you’re serious about A/B testing, I’d take the time to check it out.
- Also, if you’re really into the math, Cennyd Bowles takes a deep look at statistical significance and other testing pitfalls. Heavy, but surprisingly readable. I’d also call attention to my comment on the post for a counter-argument to Cennyd’s concern.
- You don’t just have to A/B test your landing pages, of course. Jason over at A Smart Bear gives a great example (complete with cute hamsters!) of A/B testing on AdWords. Cool. (And, did I mention the HAMSTERS?!?)
- And, finally, if all that isn’t enough for you, Smashing Magazine has their Ultimate Guide To A/B Testing. And it is simply smashing.
Whew! That’s a ton of resources for you to use as you plan your own A/B tests. And you should.
Did I leave something out? I’d love to continue to collect these case studies here. If you find a good one, do me a favor and post it in the comments.
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