Trustworthy evidence of what a learner knows
At the exit of every node, a short diagnostic captures four signals: the learner's response, their reasoning in their own words, their confidence, and how they worked. It is a diagnostic conversation, never a simple quiz.
Four signals, not one answer
An Evidence Check captures four things: the learner's response, their reasoning in their own words, their confidence, and the process by which they got there. Together these separate a careless slip from a shaky grasp from a confident misconception — and drive what the learner sees next.
Its value depends entirely on the answer being the learner's own. That is why an Evidence Check is treated as a diagnostic conversation, not a graded test.
Three kinds of assessment — don't confuse them
Practice interactives
Formative retrieval practice inside the node. Retryable, immediate feedback, never graded. Their job is to help the learner learn.
The Evidence Check
A diagnostic at the node exit. Captures response, reasoning, confidence. Drives routing; never graded directly.
Milestone assessments
Formal, graded exams under controlled conditions. Evidence Checks prepare learners for these.
The rules that protect the diagnosis
- No correctness feedback in-flow. The platform never says right or wrong while the learner answers — so later answers aren't contaminated.
- Never graded directly. Outsourcing a single check buys nothing; the grade attaches elsewhere.
- Always four signals. Response, reasoning, confidence, and process are required — not optional.
- A penalty-free “I'm not sure”. Honest uncertainty is useful evidence that routes to support, never a failure.
Mastery produces the grade; the grade never produces mastery
This is a design law of the platform. The Evidence Check exists to diagnose and support, not to score.