Elm 1: define the causal question and inspect confounding
Advanced causal reasoning · Distinguish an observed association from an intervention effect before adjusting a table.
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Advanced / Rehearse reliable AI releases ↗Advanced / Evaluate AI evidence and retrieval ↗Advanced / Reason about cause and effect ↗Advanced / Evaluate useful forecasts ↗Advanced / Build reliable analytics models ↗Advanced / Start the Meridian evaluation labs ↗15 min / Solve a SQL challenge ↗15 min / Diagnose a misleading total ↗45 min / Prepare an honest résumé ↗
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Advanced causal inference
Estimands, confounding, assignment-preserving experiments, DiD assumptions and sensitivity.
Elm 2: evaluate assignment without dropping non-compliers
Advanced experiment lab · Preserve the assignment estimand and enumerate a small exact randomization test under an explicit design.
Explore & practiseElm 3: inspect difference-in-differences assumptions
Advanced policy-review lab · Compare before-after, post-only and DiD contrasts, then challenge the missing counterfactual trend.
Explore & practiseElm 4: defend a causal conclusion with an assumption ledger
Advanced portfolio and interview exercise · Communicate an estimand, design, evidence and sensitivity without turning a contrast into a causal promise.
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