Base·Note Data

Blog

Notes on marketing measurement.

Short takes on MMM, incrementality testing, attribution and the messy data underneath it all, from Chelsea Cramer, founder of Base Note Data.

  1. Measurement audit · Data quality

    What a marketing measurement audit actually turns up

    Most of the data looked fine. On closer inspection, it wasn't telling the right story.

  2. Email · Testing

    My dream email marketing test

    Send people the kind of email they already respond to, and watch what happens to revenue and costs.

  3. B2B · Attribution · MMM

    B2B and B2C marketing measurement are not the same

    Some frameworks carry over. The models underneath them need to get more complex.

  4. Trends · MMM · Brand

    Marketing measurement ins and outs for 2026

    Fast MMMs and test-and-learn loops are in. Dashboards without decisions are out.

  5. AI · Data costs

    Cut data costs by having an LLM optimize your SQL

    One of my favorite LLM use cases saves real money on reporting.

  6. CTV · TV measurement

    What Netflix acquiring WBD could mean for measurement

    The best case is better cross-channel insight. The worst case is a bigger black box.

  7. Incrementality · Geo testing · Holdouts

    How to test whether Black Friday promos just pull purchases forward

    Three ways to find out if discounts are training customers to wait, without wrecking holiday sales.

Work with me

Want a second set of eyes on your measurement?

I help marketing and growth teams figure out what their spend is actually driving, with MMM, incrementality testing and attribution that finance trusts too.

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