Marketing Mix Models - MarketingIQ - Independent Media Measurement

How to validate a marketing mix model (MMM)

January 28, 2026By Simon FosterMarket Mix Models, Marketing Effectiveness, Marketing Mix Models, MMM

How good and reliable is your marketing mix model (MMM)? Can you trust your MMM? A marketing Mix Model (MMM) can produce challenging results, especially if you have been relying on last touch( LT) attribution. When presented with challenging results your first question may well be “can I trust the model?”. The answer to … Read More

I am an independent marketing and media effectiveness consultant, with an emphasis on delivering marketing science-based solutions to advertisers. My independent status allows me to show you “how it is” rather than “how it ought to be”.

I offer extensive experience to support this, having worked at multiple market-leading agencies and media companies including CACI, Channel Four, Initiative, Mindshare, mSix, Ogilvy and PHD.

Client Experience: You can see my client experience here.

Awards: In the last four years my team has won three MediaWeek Awards (a gold and two silvers) for Best use of Econometrics, and a Silver for Best Use of Data and a Special Award for Attribution in the 2019 WARC global Best use of Data awards.

Technical: From a technical point of view I use R for all modelling and have undertaken extensive R courses including Tree Based Models in R, Visualising spatial data in R, Analysing Social Media data in R, Time-Series analysis in R, Correlation and Regression in R, Data Manipulations with dplyr, Multiple and Logistic Regression R, Intermedia R and Modelling with Data in the Tidyverse.

I use these pages to share knowledge and skills with people who might be interested. If you want to follow me on LinkedIn you can find me here.

Enjoy! Simon.