EXPERIMENT: XEO-COM-001

Can XEO Increase Book Discovery and Attributable Amazon Sales?

Applying the XEO Book Discovery Stack to book pages on hub.newphysician.org will increase qualified visits to Amazon and attributable book purchases.

The Measurement Funnel

Stage 1

Discovery

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Stage 2

Hub Book Page

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Stage 3

Amazon CTA Click

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Stage 4

Detail Page View

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Stage 5

Add to Cart

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Stage 6

Attributed Purchase

Experiment Metrics

Hub Page Traffic

Awaiting baseline

Amazon Outbound Clicks

Awaiting baseline

Attributed Purchases

No Attribution report imported yet

Headline Outcome (Sales/100 Hub views)

N/A

Stepped Wedge Rollout Sequence

Staggered Intervention Timeline

Because book topics differ, we use a staggered rollout (stepped-wedge) rather than parallel variants. Each title serves as its own pre-intervention control.

Phase 1: Baseline (Days 1 - 14)

Collect page traffic and KDP organic metrics without XEO stack optimizations. Status: Baseline active.

Phase 2: GROUND Intervention (Days 15+)

Deploy XEO Book Discovery Stack to GROUND. Keep THE ROAD and CIRCLE as untreated comparisons. Status: Scheduled.

Phase 3: THE ROAD & CIRCLE Intervention (Days 30+)

Stagger rollout to remaining titles. Status: Scheduled.

Confounders & Causal Limitations

Changes in book pricing, external promotion spikes, and KDP reporting lags (24-48 hours for KENP page reads) can influence sales. The Lab maps these attributes openly. Outbound click events represent intentions, while purchases represent confirmed transactions.