Experimental Mind #277
Your weekly overview of interesting reads, events and jobs for the experimental mind.
This week’s roundup features a new online power calculator, bold predictions from Cassie Kozyrkov on the future of work, fresh thinking from Spotify on combining observational and experimental data, and a practical field guide to applying behavioral science in product work.
Thanks to Convert and Sitespect for their continued support.
🔎 Interesting things you might have missed
TestMate
Simon Jackson thinks that most online power calculators suck, so he vibe coded a better one. Here is TestMate: “Your friendly companion for A/B testing analysis.” >>>
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10 things Cassie Kozyrkov believes about the future
Success will favor those who adapt quickly, embrace ambiguity, and focus on trust, creativity, and human connection. Traditional signals like degrees will lose value, while personal brands and real contributions will matter more. Human strengths like empathy and meaning-making will remain crucial. >>>
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The hardness of validating observational studies with experimental data
Spotify’s research shows you can detect when observational models are wrong using experimental data, but you can’t confirm when they’re right without assumptions. They propose modeling bias as a smooth function to safely combine both data sources. There is also a paper. >>>
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An end-to-end systematic approach to applied behavioral science
A new Bescy Magazine article offers a practical guide to applying behavioral science frameworks. It organizes tools into six categories—from process frameworks and alignment tools to diagnostics, design aides, assessment methods, and scaling considerations. These help teams structure, prioritize, and scale behavior change efforts more effectively. >>>
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Last week’s most clicked item:
Statistics for people in a hurry
Good and short overview by Cassie Kozyrkov of very common statistical concepts. Looker for a reminder of the most common terms, go here. >>>
🎧 Podcast of the week
Again, only halfway through this one, but Kahneman is always a joy to listen to.
If you like this episode, make sure to subscribe to the podcast. Or discover other podcasts via the Experimental Mind curated podcast feed.
🚀 Job opportunities
Find 100+ open roles on ExperimentationJobs.com. This week’s featured roles:
Senior Experimentation Designer at Deloitte (Sydney or Melbourne, Australia)
Data Scientist II, Instrumentation & Experimentation at Teladoc (USA)
(Senior) Data Analyst – Experimentation at Bitvavo (Amsterdam, Netherlands)
Marketing Experimentation Specialist, Associate at Infor (Dallas, USA)
CRO Lead at Philip Morris (London, United Kingdom)
😃 Something that made me smile
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Have a great week — and keep experimenting.
Thanks, Kevin