Running better experiments

Practical writing on building an experimentation habit: what to document, how to review a test before it ships, and where teams lose trust in their own results.

7 posts

2 September 202610 min read
A/B Testing in the Age of AI
In the age of AI, there is a growing debate about how it will transform the professions and skills we rely on today. Some view AI as a game changer, capable of completely reshaping the workforce: certain professions and skill sets may disappear entirely, while new, as-yet-unknown roles will emerge. Others argue that AI’s impact will be more evolutionary than revolutionary: the same professions will remain, but AI will accelerate and enhance the work we already do, enabling people to accomplish more in less time.
Allon Korem
Chief Executive Officer
2 September 202612 min read
How to choose the right metrics and KPIs for A/B testing
Metrics, often referred to as KPIs (Key Performance Indicators) in A/B testing, are the foundation of any successful experiment. They determine what you observe, how you evaluate performance, and ultimately what decisions you make. Without the right metrics in place, even the most promising idea cannot generate meaningful impact, because you won’t be measuring the outcomes it actually affects. In this post, we take a comprehensive look at experimentation metrics: the different phenomena they capture, how to select the right ones, and how to analyze and interpret them in a way that drives clear, business-aligned decisions.
Allon Korem
Chief Executive Officer
4 June 20254 min read
Move forward: The A/B testing mindset guide
This guide aims to give you practical principles to develop A/B testing mindset. Principles that will help you survive, thrive, and systematically reach the 20-30% test success rate that creates dramatic impact in your bottom line.
Israel Ben Baruch
CRO Expert
19 March 20251 min read
Sweet Test O' Mine: Rocking the truth in experimentation
Our "Sweet Test o' Mine" webinar debunked some of the most common A/B testing myths, highlighting the importance of testing often, iterating quickly, and trusting data over intuition.
Allon Korem
Chief Executive Officer
24 December 202411 min read
Statistically speaking: How to (properly) report A/B testing results
Many analysts make fundamental mistakes that can misrepresent or undermine the test's findings. This blog highlights common reporting errors and offers practical guidance for presenting tests results effectively.
Allon Korem
Chief Executive Officer
15 September 20241 min read
I want it that way: Building experimentation infrastructure & culture
Learn from top expert, Ronny Kohavi, how to build infrastructure required for A/B testing, foster a culture that encourages experimentation, and ensure your teams learn valuable lessons from failures.
Allon Korem
Chief Executive Officer
24 July 20241 min read
Oops I Did It Again: Common Testing Mistakes and How to Fix Them
Ever wondered why your A/B tests aren’t delivering the results you expected? Reveal the most common A/B testing mistakes made by top companies and how you can avoid them.
Allon Korem
Chief Executive Officer

A/B Testing at Bell Statistics

We build experimentation practices for product and marketing teams — the methods, the documentation and the training behind them.

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Running better experiments

A/B Testing in the Age of AI

How to choose the right metrics and KPIs for A/B testing

Move forward: The A/B testing mindset guide

Sweet Test O' Mine: Rocking the truth in experimentation

Statistically speaking: How to (properly) report A/B testing results

I want it that way: Building experimentation infrastructure & culture

Oops I Did It Again: Common Testing Mistakes and How to Fix Them

A/B Testing at Bell Statistics

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