Marketing Metrics Questions
Part of the Digital Marketing Roadmap
In short
'How would you measure this campaign's success?' The best answers pick one main metric tied to the goal, a few supporting ones, and one that warns you if something is going wrong.
'How would you measure success for X campaign?' — testing whether you can define a primary metric plus supporting metrics, connecting to Phase 8's analytics fundamentals.
Think of it like this
The car dashboard
Driving to Lonavala, you mostly watch the speedometer. But you also glance at fuel and the engine warning light. Focus on one number, keep an eye on a few others. Marketing metrics work the same: one main metric, supporting metrics, and a warning light.
Watch it happen
Metrics for a food delivery app's referral campaign
1/4Start from the business goal: bring in new paying users through referrals.
The big ideas
What you need to know
One main metric
Pick the one number that best shows the goal was met. Say why you chose it.
Leading indicators
Early signals like CTR or sign-ups help you adjust before final results arrive.
Guardrail metrics
Metrics that shouldn't get worse, like cost per acquisition or unsubscribe rate.
Know the formulas
CTR, conversion rate, CPA, ROAS, CAC and LTV come up often. Practise explaining each simply.
See it in code
Walk through the code
1CTR = clicks / impressions2Conversion rate = conversions / clicks (or sessions)3CPA = ad spend / conversions4ROAS = revenue from ads / ad spend5CAC = total sales + marketing cost / new customers6LTV (simple) = avg order value × orders per year × years retained1/3Engagement and efficiency of moving people to act.
Six formulas that come up in almost every marketing interview. Be ready to explain each in one plain sentence.
Save yourself the pain
Common mistakes
Oops
Naming ten metrics as equally important.
Do this instead
Choose one main metric and explain how others support or guard it.
Oops
Picking vanity metrics like impressions for a sales goal.
Do this instead
Match the metric to the goal: sales goals need conversion or revenue metrics.
Your mission
Metric trees for three campaigns
Quick check
An ad campaign spent ₹50,000 and brought ₹2,00,000 in revenue. What's the ROAS?
Go deeper
- 1Practice stating a primary metric first, then 2-3 supporting metrics.
- 2Explain WHY each metric was chosen, not just naming metrics.
- 3Prepare to discuss the difference between vanity metrics and revenue-tied metrics.
More analytics & metrics at this stop
Attribution & Funnel Questions
Campaign Performance Case Studies
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