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Data-Driven Decision Making

Move beyond gut instinct. Learn how to design experiments, run A/B tests, and use data to validate product hypotheses — while avoiding the common biases that lead teams astray.

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A/B Testing for Product Managers — The Complete Guide

Everything you need to know about running meaningful experiments: hypothesis formation, sample size calculation, statistical significance, and the common mistakes that invalidate results.

Article

Cognitive Biases That Kill Product Decisions

Confirmation bias, survivorship bias, anchoring, and the sunk cost fallacy — how these mental shortcuts lead PMs to bad decisions, and frameworks to counteract each one in your product process.

Article

How to Build a Culture of Experimentation

It's not enough to run one A/B test. Learn how to create an experimentation culture on your team — including how to get buy-in from leadership, set up a test backlog, and learn from failures.

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Experiment Planning Template (XLSX)

A spreadsheet template for planning and tracking product experiments. Includes columns for hypothesis, metric, test design, sample size, results, and learnings.

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