A lot of great posts about a/b testing and conversion optimization published weekly. To make sure you didn’t miss something really important we gathered the most valuable and shared post of the previous week. Let’s show it up.

18 Cognitive Biases You Can Use for Conversion Optimization

Short summary: There are dozens of other cognitive biases to consider, but these are some of the most common and relevant to the CRO industry.

What Is Cognitive Bias? Why Should You Care About It?  How do you persuade effectively when people are so heavily influenced by subjective (and contextual) factors? Once you’re aware of the different cognitive biases, you can begin to account for them and limit their impact on your visitors’ thinking (and your own). The article full of industry experts and it has value for everyone who want to use cognitive biases to boost conversion rate.

Conversion Rate Optimisation: Closing the loop on abandoned baskets

Short summary: Is there anything more frustrating than an abandoned basket for an online retailer? Did you know that predicted abandon shopping carts about 75% for 2015? It takes a lot of work to even get a customer / potential customer to this point, so to see the shopping cart abandoned at the final hurdle is heart-breaking, not to mention bad business.

If baskets are being abounded, you need to find out why. This guide help you to Identify where you are losing potential customers, find out why visitors aren’t converting, improve conversions.

Should You Really Reduce Form Fields?

Short summary: You have a landing page and plenty of traffic, but no one is clicking the submit button on your lead gen form. What gives?

If you’re like most people, your first instinct is to remove form fields to reduce friction. Sounds simple and, well, pretty obvious, right? If you want more people to complete your form, ask less of them. A best practice was born.

Reducing form fields to increase conversions isn’t a myth, but it’s also not an absolute truth. Just because it works often, doesn’t mean it will work always.

Find out data-driven proves inside the post and more tips to test your form hypothesis.

Registration Form Optimization: 9 Best Practices for Increasing Signups

Short summary: There are so many reasons you would want someone to register for your site. Whether you have an e-commerce site and want to get users’ emails for your abandoned cart and email discounts and sales or you planned a webinar and want people to sign up through your landing page  – you want those users to register. It’s a great way to increase returning users and you can use it as a tool to increase purchases or other conversions you have for your site.

Another great article about form but this one more related to signups. Here are 9 Best Practices for registration form optimization. It full of case studies from companies like Prezi, MailChimp, PictoChart and some others.

You will find valuable tips & tricks that help to get more signups [personally, I like #5].

When Should You Stop an A/B Test?

Short summary: So let assume  you’re running A/B tests like a responsible marketer should. But when are you declaring a test “done”? Is it when you reach 100 conversions per variation? Is it when you hit 95% statistical significance? Is it whenever the testing tool tells you?

Most marketers are terrible at A/B testing statistics. Don’t be one of the ignorant fools. Stopping A/B tests too early is by far the most common mistake rookies make.

Questions inside the article will help you to deal with this issue.

Don’t Do A/B Testing [Rant]

Short summary: A/B testing is highly useful, no question here. But a lot of businesses should not be doing it. They’re not ready yet. Roughly speaking, if you have less than 1000 transactions (purchases, signups, leads etc) per month – you’re gonna be better off putting your effort in other stuff.

A short, but informative post about unnecessity of a/b testing for small biz.

How To Perform An Analysis Of Your Ecommerce Data

Short summary: To get explosive ecommerce growth you need to have an in-depth understanding of data analysis.

When looking to improve the conversion rates and profits of your ecommerce store you need to collect and analyse lots of different types of customer data. Find out more about such data sources as mouse tracking, live chat, on page seo audit, etc.

For the data to be actionable you have to analyse it and turn your insights into a/b test hypothesis.

Finally, to ensure you choose the most profitable a/b tests to run first you must rank and prioritize your a/b tests.

Archiving Test Results: How Effective Organizations Do It

Short summary: Archiving test results is important because it allows for clearer reporting and communication, and because it gives you a knowledge database from which you can extract insight.

However, unlike A/B testing statistics, the rules of execution are bendable when it comes to archiving results. There is no one way to do it, and most mature organizations do it just a little differently. As long as you’re tracking the right data, the data that is pertinent to your growth, then the method by which you do so is of secondary importance.

How marketing organizations and experts do it? What tools they used? What you can learn from past results? Answers inside.

A/B Test Mining: 4 Places to Find Meaningful Test Ideas

Short summary: It can be hard to figure out why customers buy from a website and what turns them off. To find out the right answer, you’ll need to create some A/B tests for your website. But not superficial ones that look only at the efficiency of a font or button text.

So, where do you find the solid rationale or hypothesis that’ll be the foundation for these A/B tests? Take a look at some of the undiscovered sources of data that can help you create meaningful A/B tests and improve your conversion rate.

Automated Marketing: 6 Simple Steps and 18 Amazing Resources

Short summary: At the end of the day, marketing automation has a growing track record that proves its impact on business returns. It allows you to assess your content in depth in order to develop processes that lead your prospects straight to your products, with less and less involvement on your part over time.

The problem is, marketing automation can be overwhelming – especially for those who lack technical expertise or don’t have room in budgets for a dedicated team.

These 6-step process along with 18 tools and resources help you identify the most valuable elements of your marketing to automate.