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CRO & Testing

Statistical power

Years ago, when I first started split-testing, I thought every test was worth running. It didn’t matter if it was changing a button color or a headline—I wanted to run that test.

My enthusiastic, yet misguided, belief was that I simply needed to find aspects to optimize, set up the tool, and start the test. After that, I thought, it was just a matter of awaiting the infamous 95% statistical significance.

I was wrong.

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Marketing and AI

ChatGPT is able to answer lots of difficult questions. It’s (mostly) available 24/7. It’s disruptive and could potentially become your best employee.

This raises some other difficult questions. Will the skills you’re learning today be obsolete by tomorrow if AI can do it better? Are chatbots going to steal marketers, writers, and developers’ jobs?

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