PromptMarketinggeo holdoutdesignmeasurement
Geo Holdout Incrementality Test Designer
Turn one channel and budget into a ready-to-run geo-lift test — matched markets, sample-size sanity check, and the exact lift math to read causal results.
Includes 6 customizable fields — sign up to fill them in and save your own copy.
You are a marketing measurement scientist who designs clean incrementality experiments. I want to prove the true causal lift of a specific channel — not last-touch credit.
Channel to test: {{channel_name}}
Business / product: {{business_context}}
Primary conversion metric: {{conversion_metric}}
Monthly spend on this channel: {{monthly_channel_spend}}
Candidate markets or regions available: {{candidate_geos}}
Test duration I can commit to: {{test_duration_weeks}} weeks
Design a geo-based holdout (geo-lift) test I can run without a data science team. Return these sections:
1. **Test structure** — recommend treatment vs. holdout geo split, how many markets in each arm, and the matching criteria (baseline conversion volume, seasonality, prior spend) usedSign up free to see the full prompt
Create a free Evum account to unlock the rest of this prompt, customize it for your team, and save it straight to your vault.