What is A/B Testing?

5 min to read

A/B testing is when you test multiple versions of an ad, landing page, or other form of content. Your objective is to see which one performs better and then determine why this is the case – while also offering more of the same stuff to your audience.

Besides landing pages and ads, A/B testing can involve emails and product prototypes. It’s also known as split testing.When you’ve created the assets, you will then show what you’ve created to different audiences.

Once you’ve A/B tested your assets, you will then analyze your results and make decisions based on results. This practice is often used for marketing campaigns and the user experience.

Example:

Many YouTubers and businesses try different headlines. They might do this in emails, but they may also do so in videos and other content. The creator will then compare open/clickthrough rates and determine which one they should do more of.

Pro Tip:
Despite the importance of A/B testing, you shouldn’t jump straight into experimentation without planning beforehand.Set up your systems and determine your goals before starting your tests.
Key Takeaways:
  • A/B testing involves experimentation and is important for decision-making
  • Plan your split tests in advance and make sure that you set contingencies in place
  • Choose tools that help you A/B test in accordance with your business goals

What is the goal of A/B testing?

Your primary objective in A/B testing is to see what your audience reacts better to with different types of content. You can utilize this type of experimentation both for content creation that relies on natural algorithms and for content that utilizes paid advertising. Setting specific metrics in advance is important, and these can cover any of the following: 

  • Click-through rate (CTR): Users clicking on a link/button and going to your desired page. 

  • Conversion rate: How many users sign up for a trial period, buy a product, or complete another specified action. 

  • Time on page: The average number of minutes that users spend on pages before clicking elsewhere. 

  • Bounce rate: The number of users who view one page on a website before going to another.

Set your A/B testing goals in advance based on your objectives. It’s also a good idea to focus on one metric rather than trying to measure everything, as what’s successful for one business might not be to another. 

What are the different types of A/B tests?

A/B testing is a simple idea in practice, but you should also know about the different types before doing your own experiments. Here are some of the most common ones: 

  • A/B/C testing: Rather than trying just two variations, you’ll experiment with three or more options. 

  • Multivariate testing: The core content might be the same, but other parts of the content will change. For example, you may experiment with different headlines and call-to-action (CTA) buttons.

  • Split URL testing: Here, you try different landing pages for various platforms. What someone sees when they click on social media might be different from when they visit via a search engine. 

  • Cookie-based testing: Determine which users resonate the most with your messaging, and which ones don’t, with their previous browsing history in mind. 

Some of these will work within the context of your marketing, whereas others might not be as useful. You’ll need to choose which ones make the most sense based on your goals; this might require some experimentation. 

Pro Tip: 
Before learning how to use other types of A/B testing, start with the simplest form and get a better understanding of this. 

What are the key metrics to track in A/B testing?

Although metrics might differ depending on what you’re trying to track, there are some common A/B testing statistics worth understanding. These include: 

  • Statistical significance: This will show you if your two tested versions have enough statistical importance between them. 

  • Effect size: This determines how big the difference is between your split-tested assets.

  • Confidence level: This suggests whether differences between your pages are legitimate enough or whether they’re just chance-based instead. 

  • Sample size: Use this to figure out whether you’ve got a big enough sample size or whether you need to make adjustments. 

Determine whether you were effective or not by tracking each of these metrics. You can then decide on your next steps, based on the information you’ve acquired running these experiments.

What are the challenges of A/B testing?

A/B testing is essential for many businesses, but you do need to think about the different issues you might encounter. Here are some things to keep in mind: 

  • Implementation: Hire the right technical expertise for your A/B testing, and set reasonable timescales. You should also have systems/software in place to measure your results.

  • Interpretation: Understand how to measure the data that you see in your A/B testing. You might want to start with smaller samples and experiments before trying bigger ones.  

  • Ethical considerations: Be ethical with your testing and ensure that you maintain transparency with your audience. 

Some of the ways you should think about tackling these issues beforehand are: 

  • Using tools: Implement the right tools that will monitor data and make everything more readable. 

  • Guidance: Consult someone who knows about A/B testing for result interpretation; it might seem expensive, but you’ll likely save time. 

  • Make ethics a priority: Regardless of the tests you run, keep the user experience at the forefront of your mind. 
Pro Tip: 
Slowly scale your experiments rather than starting with something that’s too complicated. 

Conclusion

A/B testing is a necessity for many businesses; before implementing your experiments, you’ll need to set up the right systems. It’s also important to know what you’re trying to measure and how to interpret your data. 

Understanding the essentials of A/B testing is important, but you should also note the potential challenges that might arise. Make sure that you also keep ethics at the forefront of your mind; start with smaller tests before going into more complex ones.

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