Metrics question

You are a PM for Facebook Events currently focused on growth. What would be your North Star metric?

Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.

What this question tests

Ability to choose a single North Star metric that captures a growth focused feature's core value.

Clarify the goal of Facebook Events at this stage: growing usage and habitual reliance on the feature for real world planning.
Consider candidate metrics: events created, event page views, RSVPs, and actual attendance.
Reject event page views and RSVPs alone, since they measure intent, not the feature's actual real world value.
Select weekly active event attendees or RSVPs converted to confirmed attendance as the North Star, since it reflects genuine real world utility.
Explain why this captures both supply (event creation) and demand (attendance) health, since low creation means no attendance possible.
Define supporting metrics, event creation rate and RSVP to attendance conversion, that feed into and explain movement in the North Star.

Correctly rejects shallow metrics like page views or RSVP count alone, focusing on actual attendance as the real value delivered.
Explains why the chosen North Star reflects both sides of the ecosystem, event creators and attendees, not just one.
Gives an illustrative number, e.g. assumes RSVP to attendance conversion is currently 40 percent and could rise with better reminders.
Names clear supporting metrics that explain movement in the North Star, avoiding a single disconnected number with no diagnostic value.

Picking a shallow vanity metric like total RSVPs, which does not reflect whether events actually happened and were valuable.
Not explaining why the chosen metric was selected over other reasonable candidates.
No supporting metrics to diagnose movement in the North Star.

Chapters of the AI PM course that teach what this question tests.