fbpx

A/B Test Foundations Course

Run A/B Tests that actually move the needle

1h 07min | 5 lessons

In this course, you will learn how to:

  • How to design A/B tests that drive real business impact – not just random button CTA changes.
  • Prioritize tests the right way, so you stop wasting time on experiments that don’t matter.
  • Analyze results with confidence. No more guessing if a winner is actually a winner.
  • Trust your test data and when it’s leading you astray.
  • Identify the biggest A/B testing mistakes (and how to avoid them).

Sign up to All-Access Buy just this course

English subtitles Certificate included
CXL-Rating-Transparent

Trusted by marketers at

Most A/B tests fail. Make sure yours don’t

Many teams run A/B tests that lead nowhere – poor design, wrong focus, bad data. This course challenges that norm. You’ll learn to run A/B tests that drive real revenue impact – no more wasting time on inconclusive data or meaningless experiments.

Master A/B testing and unlock the power to make data-driven decisions with confidence

Course Length:
1h 07min. 5 lessons.

This isn’t about running more tests – it’s about running the right tests. Led by industry experts, the course provides practical, no-fluff training. You’ll gain skills that immediately apply to your work, changing how you approach experimentation. You’ll learn how to avoid common testing mistakes, prioritize impactful experiments, and apply rigorous statistical methods equipping you with the ability to make data-driven decisions that optimize strategies.

After completing this online course on A/B testing foundations,
you will be able to assist your team and company with:

  • Designing high-impact A/B tests that actually move the needle.
  • Analyzing test data correctly, so you don’t make million-dollar mistakes.
  • Identifying where to run tests for the biggest ROI.
  • Avoiding false positives, statistical noise, and wasted effort.
  • Building a repeatable testing framework that scales with your business.

This course is for you if you are responsible for:

  • Marketers tired of running A/B tests that don’t lead to real business growth.
  • Growth teams looking to optimize conversion rates without wasting months on bad experiments.
  • CRO and experimentation leads who want to improve test velocity and get reliable insights.
  • Product and UX professionals who need data-backed decisions to improve user experience.
  • Founders and startup teams who can’t afford to make decisions based on gut feelings.

Look no further than CXL, this is the best and most recommended course you will find on A/B Testing Foundations.

Subscribe now and get access

See Pricing

Course Curriculum

A/B testing foundations

Introduction to A/B testing

What are we doing here? Topics covered: What is testing for?What’s the alternative? Resources Lesson slide deck

What to test?

What should you be testing to begin with? Topics covered: Research/experimentation 80/20What to test first? Resources Lesson slide deck

Test prioritization

You have multiple competing hypotheses. Which one to test first? Topics covered: PXL Framework Resources Resources PXL prioritization framework sheet Documentation OD Test Prioritization Template Lesson slide deck

A/B testing statistics

How to run statistically valid tests. Topics covered: Statistical significance (p-value)Statistical powerBandit test Resources Resources A/B Test Calculator – CXL Tool Lesson slide deck

Testing strategies

How to choose what kind of tests to run Topics covered: PyramidXLInnovative testing vs iterative testing Resources Resources Pulling Back The Curtain on P-Values Blog post/article Statistical Power Blog post/article Bayesian vs. Frequentist A/B Testing

Peep Laja

Founder @ CXL

Peep is the founder of CXL, and champion of conversion optimization and experimentation. He’s been nominated as the most influential conversion rate optimization expert in the world.

Peep is the creator of the ResearchXL conversion research framework and PXL test prioritization framework.

This online course
comes with a
Certificate

Completing this course earns you an official CXL A/B Testing Foundations Course Certificate to prove your achievement. CXL is recognized as an industry-leading qualification by employers worldwide, and it is an official qualification on Linkedin that can be added to your profile.

What our students say

Subscribe to CXL
and get access

✔ 120+ Highly practical and detailed marketing courses

✔ 10x Programs to give your team the competitive edge

✔ Vetted top 1% of marketing practitioners as instructors

✔ New content monthly with on-demand access

The CXL guarantee: 7-day no questions asked money-back period

Sign up now
Team Trial

Frequently asked questions

Plans

What is the difference between the monthly, quarterly and annual plans?

We offer three types of billing lengths to choose from: Monthly, Quarterly, or Annual. The longer the billing length, the cheaper the monthly cost becomes.

Typically annual plans are 40% cheaper per year than paying month-to-month.

What is the difference between the individual and teams plans?

Personal or Individual plans are meant for one person where teams have 2 or more people.

A team account has a few extras:
– Invite and manage people learning on your team.
– Create roadmaps for each individual.
– Access team learning engagement reports.
– Assign members to your team as managers to assign content and view reports.

What is included in the all-access plan?

You’ll get:
– Access to 90+ online courses.
– Earn certificates and add them to LinkedIn.
– Thousands of playbooks and resources.
– All minidegrees
– Roadmapping and progress tracking
– Premium Support

Can I switch plans later if I want to?

Yes. You can switch between different billing lengths at any time (Ex: Switch from a Monthly Plan to Annual).

If you’d like to switch from a individual plan to a team plan (or vice versa), please reach out to customer success via live chat.

Billing

What are the payment options available?

Most major credit cards and Paypal are accepted. If you need an invoice to pay by wire, please message our customer success team via chat for options.

What is parity pricing?

All of our products are priced in USD currency. In order to make our products more affordable, we have established a system where you can pay in your local currency using a special metric that adjusts the price you pay according to the purchasing power of your country.

Is there a discount available?

One of CXL’s company policies is that we don’t discount. Our focus is on the product – providing the best, highest quality content with our courses.

The listed price on the site shows the best price – you can buy with confidence.

We offer pricing based on your local currency, you’ll see this reflected on the pricing and checkout pages.

Get growth experimentation insights and strategies in your inbox.

An expert-led newsletter focused on helping marketing teams scale growth through experimentation.
Get case studies, playbooks and strategies in your inbox once per week.

  • Hidden
  • This field is for validation purposes and should be left unchanged.

Join 140,000+ marketers | Subscribe to our educational newsletter