What Is Multivariate Testing? A Guide to Experimenting With Multiple Elements

Nov 25, 2025

A/B testing is great — but what if you want to optimize more than one thing at a time?

That’s where multivariate testing (MVT) comes in. In this video, we break down how MVT works, why it gives you deeper insights than A/B testing, and how you can use it to test multiple page or app elements at once. You’ll learn how to run multivariate tests, when to use them over A/B tests, and how Harness makes this seamless inside your CI/CD pipeline.

What You’ll Learn

  • What multivariate testing is (vs A/B testing)
  • How MVT uncovers deeper UX & UI insights
  • When to use MVT over traditional A/B tests
  • How to run multivariate tests effectively
  • How Harness supports experimentation in CI/CD

Timestamps

0:00 — What Is Multivariate Testing?

0:24 — How It Works (With Examples)

1:25 — Benefits of MVT: Insights, UX, Speed

2:03 — Challenges: Traffic & Complexity

2:30 — MVT vs A/B Testing

3:08 — How to Run a Multivariate Test

3:27 — Harness + MVT in CI/CD Pipelines

3:46 — Final Thoughts & Outro

Learn More

Learn more about Feature Experimentation with Harness
https://www.harness.io/products/feature-flags

Hashtags

#MultivariateTesting #ABTesting #FeatureFlags #Experimentation #DevOps #UXOptimization #Harness