As a startup founder, investor, or marketing leader, you’re always looking for ways to improve your marketing efforts. You’re likely familiar with A/B testing. But have you explored synthetic control marketing? This method offers a robust way to measure marketing campaign impact, especially when traditional A/B testing isn’t feasible. This is particularly useful when dealing with a small number of test units or regions.

Imagine you’ve launched a targeted campaign in a specific region. How can you accurately assess its true impact? That’s where a synthetic control group becomes valuable — offering a “what-if” scenario for comparison.

Table of Contents:

Understanding Synthetic Control Groups

This approach constructs a synthetic control group. This is a weighted combination of similar markets or control candidates acting as a counterfactual to your test market. This helps analyze causal relationships between your marketing interventions and outcomes.

Constructing a Synthetic Control Group

This “what-if” group mirrors the characteristics of your test market, or treated unit, before the campaign launch. You don’t simply clone one region; this group represents a weighted average of many similar areas using historical data. This is often referred to as the donor pool.

Selecting these contributing regions requires identifying common characteristics that drive your chosen outcome variable before any intervention happens. This is essential for creating a valid comparison.

This isn’t subjective selection. Statistical analysis guides you to create a synthetic control market. Tools like Meta’s GeoLift library can be extremely helpful. These tools enable systematic comparisons across groups and contribute to a more robust synthetic control method.

Evaluating Marketing Campaign Impact with Synthetic Control Marketing

With a synthetic control group in place, the “what-if” scenario becomes tangible. By contrasting outcomes in the exposed test group with its synthetic twin, you isolate the campaign’s effect.

This goes beyond simple correlation to understand true causation. It reveals incremental effects over time — providing nuanced insights that traditional A/B tests might miss.

While a powerful tool, synthetic control groups have limitations. They rely on the available pool of unaffected units, requiring careful consideration of control methodology. This is where having a large number of control units can be helpful.

Data Requirements and Best Practices

For robust estimates, substantial pre-intervention data is critical, ideally spanning a long pre-intervention period compared to the campaign itself. If your test market contains many smaller areas, ensure a good mix within your synthetic construction’s control.

This strengthens your accuracy. While longer datasets increase confidence in control estimates, even short timeframes offer value. Ensure you account for any limitations when interpreting results from short datasets.

Addressing Potential Pitfalls in Synthetic Control Marketing

Not all situations are ideal for synthetic controls. If there are not enough comparable regions or units for your test market, you might face limitations. Consider using alternative causal inference approaches, such as comparative case studies or regression analysis.

You can improve the reliability of your synthetic control estimates through robust checks and exercises. Carefully consider data requirements and best practices for using this method. This will ensure you accurately determine the effectiveness of your marketing campaign.

When to Consider (and When to Avoid) Synthetic Control Marketing

This approach is valuable when running location-based tests or analyzing shifts in specific geographic markets. This can be very useful in a digital marketing strategy that is hyper-focused on certain geographical regions.

Use this analysis when randomized controlled trials aren’t possible due to ethical concerns or resource constraints. This method is best applied when little prior data exists.

Synthetic control marketing is particularly useful for marketing leaders and startup founders. It’s especially useful for decisions where direct inquiries are not feasible.

Leverage historical data patterns across similar geographic areas to generate reliable insights. When you choose the correct control units in synthetic control marketing you are better able to accurately predict responses.

Beyond Marketing: Wider Applications of Synthetic Controls

While prevalent in marketing, synthetic control’s usefulness extends to policy analysis, healthcare, and more. Whenever traditional trials present ethical concerns or are resource-intensive, consider these robust statistical techniques. This includes things like the generalized synthetic control method.

Synthetic control’s comparative approach opens new pathways for evidence-based decision-making. It’s valuable in diverse fields beyond just marketing practitioners. For instance, a common example is the study of the tobacco control program in California.

Conclusion

Synthetic control marketing is gaining traction as a powerful causal inference tool in marketing analytics. Its ability to pinpoint marketing influences where conventional methods fall short offers tremendous value.

With careful preparation and understanding, it becomes invaluable for campaign assessment. Embrace this method to develop data-driven marketing decisions. Using this process, along with other inference approaches and good fit procedures, your team is well-positioned to evaluate real-world data accurately and efficiently.

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Author

Lomit is a marketing and growth leader with experience scaling hyper-growth startups like Tynker, Roku, TrustedID, Texture, and IMVU. He is also a renowned public speaker, advisor, Forbes and HackerNoon contributor, and author of "Lean AI," part of the bestselling "The Lean Startup" series by Eric Ries.

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