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Start here: Statistics for A/B testing — The Product Management Coalition. This article was first published internally at Freeletics.

Start here: Statistics for A/B testing — The Product Management Coalition

We sure take our decisions serious and don’t favour “hope-for-the-best” approaches. Also, we’re hiring Product Managers and Product Designers! What is an A/B test? An A/B test consists of taking two comparable groups of users and exposing them to two different versions (the control and a variation) of a software experience. By doing that and measuring how each of the groups interacts with the software we hope to infer which of the two versions best serves its purpose. Some relevant statistics concepts Overall Evaluation Criterion (OEC) Also called Primary Goal (in Optimizely and other tools) or Dependent variable, in statistics terminology. Null hypothesis (Ho) The hypothesis that the OECs for the variants are not different in fact, and that any observed differences during the experiment are due to random fluctuations.

Most of your AB-tests will fail. Jitbit Blog - please Subscribe if you like this post Jun 19 2013.

Most of your AB-tests will fail

20 lines of code that will beat A/B testing every time. is a drop-in solution that lets users draw on your web site.

20 lines of code that will beat A/B testing every time

A/B testing is used far too often, for something that performs so badly. It is defective by design: Segment users into two groups. Show the A group the old, tried and true stuff. Show the B group the new whiz-bang design with the bigger buttons and slightly different copy. After a while, take a look at the stats and figure out which group presses the button more often. In recent years, hundreds of the brightest minds of modern civilization have been hard at work not curing cancer. A/B test case study: how two magical words increased conversion. Posted in A/B Split Testing on May 26th, 2010 When we saw the results Soocial had got from their latest A/B test, we were astonished!

A/B test case study: how two magical words increased conversion

They added just two words next to the Sign up button and the conversions shot up by 28%. If we say the phrase was one of these: “Sign up for Free”, “It’s Free” or “Free Signup”, can you guess which one did the trick? That is precisely the beauty of A/B testing, you can never guess what works – they only way out is to actually test it. This case study has direct inputs from Soocial CEO, Stefan Fountain.

Background Soocial is an online address book that helps you keep your phone, computer and online services contacts sane. What was tested Their homepage features a large Sign up button. Results As you can read above, the changes on the page were extremely minor and, on the surface of it, look quite trivial. Control: 14.5% conversion rate Variation: 18.6% conversion rate Why “It’s Free” Worked. A Beginner's Guide to A/B Testing: Better Pay-Per-Click Ads.

Pay-per-click advertising is a key component of many online marketing campaigns.

A Beginner's Guide to A/B Testing: Better Pay-Per-Click Ads

It can also be one of the most expensive ongoing costs in a campaign. Therefore, it’s key that you test your ads regularly, to make sure you aren’t letting conversions slip through the cracks. To an extent, PPC testing is simpler than many other kinds of A/B tests, partly because there are fewer things to test. But that doesn’t mean any less care and planning should go into preparing and executing these tests. This is the fourth installment in our A Beginner’s Guide to A/B Testing series. Deciding What to Test Pay-per-click ad testing is a bit more streamlined than the other topics we’ve covered in this series.

The headlineThe body textThe linkThe keywords the ad displays for The headline is the part that’s going to show up as a link (in blue) in search results. The body text is the equivalent to your page’s description meta tag in organic search results. What Are You Testing For? Track and Analyze Your Results. A Beginner’s Guide To A/B Testing: Exceptional Web Copy. Optimizing the copy on your website is at least as important as optimizing the design, especially if the primary goal of that site is to convert visitors.

A Beginner’s Guide To A/B Testing: Exceptional Web Copy

A pretty design can only get you so far. If you really want to gain new customers, you need to optimize the text on your site to instill trust in visitors and make them want to purchase from you. We often spend hours or days reading about the best techniques to use to sell products. But that doesn’t give us a complete picture, and what works great for one company or one product might not work at all for another. A Beginner's Guide To AB Testing: An Introduction. A/B testing is a fantastic method for figuring out the best online promotional and marketing strategies for your business.

A Beginner's Guide To AB Testing: An Introduction

It can be used to test everything from website copy to sales emails to search ads. And the advantages A/B testing provide are enough to offset the additional time it takes. Well-planned A/B testing can make a huge difference in the effectiveness of your marketing efforts. Narrowing down the most effective elements of a promotion, and then combining them, can obviously make your marketing efforts much more profitable and successful.