For questions related to Sitecore's content testing capabilities and features, including its multivariate A/B testing

Content tests let you test alternative variants of your website's content to find out which pages, components, or combinations of components are the most effective with visitors. The content or components that you are comparing in a test should be designed to achieve the same goal. You can quickly evaluate the test results and gain insight into the content that functions best with your audience. This can help you create more successful campaigns with higher goal-conversion rates.

https://doc.sitecore.net/sitecore_experience_platform/analyzing_and_reporting/experience_optimization__content_testing/content_testing_overview

https://community.sitecore.net/technical_blogs/b/sitecore_development_team/posts/content-testing-in-sitecore-8

https://doc.sitecore.net/sitecore_experience_platform/analyzing_and_reporting/experience_optimization__content_testing/setting_up_tests/adding_content_testing_to_a_workflow

https://doc.sitecore.net/sitecore_experience_platform/analyzing_and_reporting/experience_optimization__content_testing/setting_up_tests/preview_and_start_a_content_test

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