Behind the Outcome

Tests are everywhere, and they dominate for a good reason. They're cheap, objective, and easily compared across practitioners, requiring minimal training to interpret. A beginner and a black belt can watch the same roll and agree on who came out ahead.

Screens are different. A screen requires a trained eye and is inherently more subjective because it relies on the observer's perception and judgment.

This trade-off is why tests remain valuable. However, it’s important to recognize that tests and screens assess different things. Those who exclusively rely on one method miss out on a deeper understanding of the game.

Tests give you outcome data, and without it, you can't train effectively or honestly claim to be prepared. At some point, the pressure test has to happen, and the result has to be respected for what it is.

The trap is in assuming that outcome alone explains the cause of success. A pass that works today might mean genuine technical proficiency or simply that your partner is tired. A test can't distinguish between skill and a coincidence.

That's where screens come in. Tests measure effect; screens investigate cause. A test tells you something worked. A screen tells you why it worked, or whether it worked despite a crack in your foundation.

Screening is harder. It's more art than arithmetic: two coaches can watch the same sequence and disagree about what they saw. That's the cost of asking a harder question; but it's worth paying because the alternative is grading everything on outcome alone. That approach can reward compensation patterns that might win today, but in a sport played over decades, winning today isn't the same as building to last.

Build on the Right Why

True discipline means using tests to measure effectiveness and screens to understand the why behind it; and then being honest about whether that why is worth reinforcing because not every why deserves to be built on.