7 Steps to Better Experiment Design
Blog post from GrowthBook
In the realm of A/B testing, the article emphasizes that the failure of experiments often stems from poor design rather than a lack of understanding of testing mechanics. Success in experimentation is achieved by clearly defining goals, selecting appropriate success metrics, and establishing a reliable baseline. The importance of understanding leading versus lagging indicators, defining the experiment population, and ensuring proper randomization is highlighted. Validation of the setup before trusting results, through practices like A/A testing, is crucial to avoid errors. Planning the experiment's duration and preparing for all possible outcomes, including neutral results, is essential for true learning and decision-making. Ultimately, the goal is not to prove preconceived notions but to uncover truths about user behavior, which can lead to competitive advantages for companies that iterate and learn deliberately from their experiments.
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