Case 01Unopened
The Dashboard Spike
A launch-week chart jumps, a deck is due, and several teams have reasons to claim the movement.
chartaudiolog
Evidence docket
Case library
Work the full 25-case suite in order, or return through focused routes when you want concentrated practice with measurement, causal design, operational models, or AI risk.
Case library
Evidence docket
Case 02Unopened
The Checkout Readout
A checkout readout lands just before planning closes, and different artifacts point toward different launch stories.
chartaudiotable
Case 03Unopened
The Churn Model Pitch
A polished retention model arrives with a renewal deadline, a crowded outreach queue, and a promise that the save team can act sooner.
model-outputtablememo
Case 04Unopened
The Inspection Queue
A city inspection team has a new routing screen, a long backlog, and one week to decide how much authority the score should have.
mappolicytable
Case 05Unopened
The Spring Tutoring Brief
A district impact brief is headed to a funding vote after students who used a tutoring platform show stronger spring gains.
press-releasecharttable
Case 06Unopened
The Winter Shelter Forecast
A city housing office must set winter overflow capacity from a forecast that fits ordinary nights better than pressure weeks.
charttimelinetable
Case 07Unopened
The Benefits Queue Score
A state benefits agency wants to use a verification score to cut backlog, but the burden may land unevenly on applicants with messier administrative records.
model-outputpolicytable
Case 08Unopened
The Claimant Chatbot
A benefits agency chatbot handles routine questions well, but evaluation logs show confident wrong answers on high-stakes claim situations.
transcriptrubricmemo
Case 09Unopened
The Payment Hold Dial
The same benefits agency must choose a payment-hold threshold that catches fraud without turning suspicion into broad payment delay.
chartsimulatortable
Case 10Unopened
The Clearance Rate Metric
The benefits modernization program changes its executive metric, and the new dashboard may reward faster closure while hiding reopened cases and payment delay.
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Case 11Unopened
The Survey Sample Mirage
A customer research survey appears decisive until response patterns reveal who never had a real chance to answer.
tablechartmemo
Case 12Unopened
The Bed-Ready Field
A familiar hospital operations field powers a clean improvement story while source systems leave conflicting traces.
tablememotimeline
Case 13Unopened
The Missingness Report
A clinical risk report looks stable after dropping incomplete records, but missingness follows staffing, language access, and acuity.
heatmaptablememo
Case 14Unopened
The Privacy-Safe Export
A de-identified public health export clears a checklist, but linkage, consent scope, and lifecycle controls make the release less simple.
policymemotable
Case 15Unopened
The Board Slide
A board packet turns an early operational shift into a dramatic story, and the chart frame is doing more work than it first appears.
chartmemotable
Case 16Unopened
The Geo Test Winner
A regional media test appears to win, but market matching, spillover, seasonality, and operational changes keep the counterfactual unsettled.
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Case 17Unopened
The Parallel Trends Slide
A policy brief claims a workforce pilot raised employment, but the comparison group was already drifting away before launch.
charttabletimeline
Case 18Unopened
The Cutoff Policy Claim
An eligibility cutoff seems to prove a rental-assistance navigator prevented evictions, until sorting around the threshold weakens the design.
charttabletimeline
Case 19Unopened
The QuickStart Readout
A product experiment gets a fast no-go recommendation, but the exposure record and interval width leave more than one interpretation alive.
charttabletimeline
Case 20Unopened
The Short-Term Lift
A subscription checkout test lifts paid starts, but refunds, retention, and support burden make the growth claim less settled.
charttabletimeline
Case 21Unopened
The Discharge Score
A hospital readmission score looks unusually strong in validation, and the launch team wants it in the discharge workflow next month.
charttabletimeline
Case 22Unopened
The Labeling Vendor Benchmark
A moderation model beats the old rules engine on a vendor benchmark, but the benchmark labels may be measuring vendor behavior more than policy truth.
charttablememo
Case 23Unopened
The Drift Alarm Nobody Owned
An ETA model drift alarm is real, but the deeper failure is that monitoring is not connected to owned operational response.
charttabletimeline
Case 24Unopened
The Holiday Override
A holiday replenishment model looks accurate enough to override planners, but store operations leave clues that demand may not be fully visible.
charttabletimeline
Case 25Unopened
The DealDesk Pilot
An enterprise assistant performs well on clean sales workflows, and revenue operations wants tool-enabled expansion before renewal season.
charttablememo
Focused routes
Case sequences for return visits
Focused route 5 cases
Data Provenance and Measurement Integrity
Practice judging whether the data, sample, field definitions, privacy posture, and visual frame are trustworthy enough to reason from.
This route strengthens the foundation under later causal, model, and decision cases.
- Case 11: The Survey Sample Mirage Survey analytics evidence file with competing signals.
- Case 12: The Bed-Ready Field Healthcare operations evidence file with competing signals.
- Case 13: The Missingness Report Clinical analytics evidence file with competing signals.
- Case 14: The Privacy-Safe Export Data governance evidence file with competing signals.
- Case 15: The Board Slide Executive reporting evidence file with competing signals.
Focused route 5 cases
Causal Designs Beyond the A/B Test
Move past simple experiment validity into spillovers, quasi-experiments, timing, power, and claim wording.
- Case 16: The Geo Test Winner Retail media evidence file with competing signals.
- Case 17: The Parallel Trends Slide Labor policy evidence file with competing signals.
- Case 18: The Cutoff Policy Claim Benefits eligibility evidence file with competing signals.
- Case 19: The QuickStart Readout Product experimentation evidence file with competing signals.
- Case 20: The Short-Term Lift Subscription growth evidence file with competing signals.
Focused route 5 cases
Operational Models and AI Risk
Practice deciding whether a model or AI system is ready for operational use after performance claims meet real workflows.
- Case 21: The Discharge Score Hospital readmission evidence file with competing signals.
- Case 22: The Labeling Vendor Benchmark Trust and safety evidence file with competing signals.
- Case 23: The Drift Alarm Nobody Owned Logistics ETA evidence file with competing signals.
- Case 24: The Holiday Override Retail supply chain evidence file with competing signals.
- Case 25: The DealDesk Pilot Enterprise AI evidence file with competing signals.