Why is it difficult, or maybe impossible, to calculate a total increase in brand awareness from a campaign spanning multiple media channels?

1. Multiple media channels may use different tools to measure brand lift.
2. Multiple media channels aggregate all your data into a single view.
3. Multiple media channels use ads in identical ways.
4. Multiple media channels consolidate campaign data for actionable insights.

Correct Answer:

• Multiple media channels may use different tools to measure brand lift.