Learning that answers a diagnosed gap.
Every lesson starts with why it is here, ends with a checkpoint, and flows into your evidence.
Why this lesson now?
You see the gap and the evidence that triggered the lesson before you see a single slide.
Why this lesson now? Causal inference is a gap for all three sample companies. In your diagnostic, matching and difference-in-differences were treated as the same idea.
Slide: difference-in-differences in one picture
Two groups, a before and an after. The effect is the extra change in the treated group beyond the change you would expect anyway.
Ask at any point. The lesson keeps its place.
Prove it: checkpoint
Which approach is difference-in-differences?
Your answer feeds the evidence map, so learning always flows into evaluation.
Curated sample lesson with precomputed answers.
Richer only when it helps.
Video and long formats are added for concepts that earn them. Factual and technical content shows its sources and how it was checked.
- Concise visual lessonThe core idea in one picture and a few lines.
- Explanation on demandAsk at any point. The lesson keeps its place.
- Cross-questioningThe tutor asks back to test understanding.
- Worked examplesConcrete cases tied to your target role.
- Optional videoGenerated only for high-value concepts.