The bi-weekly diagnostic: measure, adapt, repeat

One diagnostic at entry is a photograph. A program needs a film. Every two weeks — the rhythm that closes each study campaign — you re-run the full four-axis diagnostic, and three things make the repeat worth your time:

• It is exam rehearsal. Every item keeps the B2 épreuve format, so each diagnostic is also a low-stakes pass through the real exam's shapes: the two-listening questions, the reading formats, a timed-style writing prompt.
• It is aimed at your weaknesses. The item set is not fixed. It is assembled from what the platform has watched you get wrong — the daily notice-loop categories, checkpoint misses, and your previous diagnostics' errors are oversampled, while a base of every skill keeps the measurement honest. Two learners due on the same day see different diagnostics.
• It draws your trajectory. Each completed diagnostic appends a dated measurement. From the second one on, the report shows the curve per axis — not "where am I?" but "how fast am I moving, and on which axis?"

Between diagnostics the set is pinned: the items you see when it falls due are exactly the items you will be graded on, even if you keep logging daily errors mid-diagnostic. Item forms rotate from one diagnostic to the next, so a year of bi-weekly measurements does not become a memory test of the same six questions.

You do not have to wait for the due date. If you have been grinding one axis and want to see the needle move, retake on demand — the new measurement becomes your baseline and the old ones stay in the curve. Your spoken-production score remains self-assessed until the platform can hear you, and it is labelled as such. The timed, officially scored full B2 mock is a separate, summative event — this diagnostic is its formative, adaptive cousin.

Loading the assessment...