The models are getting better every quarter. They draft your strategy docs, surface patterns in your data, generate scenarios you'd never have time to build yourself. They are genuinely extraordinary at processing.
They cannot tell you which scenario to believe. They cannot feel the weight of a trade-off between two values that both matter. And they cannot decide, on your behalf, when the data-supported recommendation in front of you is wrong, because something doesn't fit and you can't yet say what.
That's judgement. You use it every day. You've used it to build a career, lead a team, make calls under pressure that no spreadsheet could make for you. But you've almost certainly never examined how it actually works, where it breaks down, or what you can do to make it sharper.
This masterclass does that.
It's built on peer-reviewed research in decision science and behavioural science, and on fifteen years of working with professionals and leadership teams on exactly this problem. It's free. It takes about 60–90 minutes at your own pace. And it will change the way you think about the decisions you make and the way your team makes them.
What's inside
You'll start with a diagnostic that maps your judgement across four dimensions, showing you where you're strongest and where you're most exposed.
Then you'll see how two of the most common decision tools are almost universally misused, and what small corrections actually look like.
You'll learn why knowing about cognitive biases doesn't protect you from them, through research and a personal story about the time I fell into a trap I teach others to avoid.
You'll go inside three organisations, a surgical team, an animation studio, and one of the world's largest technology companies, that faced deep judgement failures at scale and redesigned the conditions around their decisions. Not by making their people smarter. By changing the systems in which those people worked.
And you'll leave with a practical set of tools for strengthening your own judgement and making it stick, not through willpower but through the science of behavioural design.
Who is this for
You're good at what you do. You run things. You make consequential decisions under real constraints, with imperfect information, alongside other people. You don't need to be told that decisions matter.
What you might not have is a framework for the part of decision-making that sits upstream of the tools, the frameworks, and the data: the judgement that determines whether any of those are being used well.
This masterclass is for professionals who are ready to look honestly at how their judgement works and do something concrete about the parts that could be sharper, especially in a moment when AI is changing what good judgement demands.
About
This masterclass was created by Melina Moleskis, founder of Meta-decisions, a decision and behavioural science practice that helps people and teams boost their decision-making through evidence-based methods. Melina has spent fifteen years applying decision science with senior professionals, leadership teams, and organisations across sectors. Her work has featured in Harvard, Forbes and leading international press, and she has served as Director of the Global association of applied behavioural scientists.
Free. No sign-up required. About 60–90 minutes at your own pace.