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Optimizely Blog

Tips & Tricks for Building Your Experimentation Program

Leveraging Interaction Effects in A/B and Multivariate Testing


Leveraging Interaction Effects in A/B and Multivariate Testing

“Interaction effects”. This phrase can strike fear into the heart of anyone who has contemplated running multiple concurrent A/B tests. At best, experimenters view interaction effects as an inconvenient reality which forces them to consider making experiments mutually exclusive. At worst, interaction effects can make it difficult or impossible to interpret the results of concurrent […]

Improving Snippet Performance and Matching with 3rd Party Analytics


Today, we’re pleased to share a pair of new updates to the Optimizely JavaScript snippet which are launching in general availability: a more performant event logging endpoint (/events), and new JavaScript methods for event timing. /events Logging Endpoint: Better performance through batching Our customers care a lot about the performance impact of including our snippet […]