Metrics question
Traffic on the New York Times homepage has decreased by 15%. How would you identify the cause?
- Carta
- Metrics
- Medium
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What this question tests
Root cause diagnosis of a metric drop: structuring a hypothesis tree across internal and external causes.
How to approach it
- Confirm the drop is real: check measurement or tracking errors first, like a broken analytics tag or timezone bug.
- Segment the drop by traffic source, such as direct, search, social, and referral, to isolate where the decline concentrates.
- Check for internal changes, like a recent homepage redesign, paywall change, or site outage around the same period.
- Check external factors, like an algorithm change from Google or a seasonal news cycle dip.
- Prioritize the hypothesis with the strongest signal and propose a fix or further investigation.
What a strong answer includes
- Rules out a tracking bug first, since a 15% drop is sometimes a measurement artifact, not a real user behavior change.
- Segments by channel and finds, for example, that the drop concentrates in search traffic, pointing to an SEO or algorithm issue.
- Proposes a specific next step, like checking Google Search Console for ranking changes, rather than a vague investigate further answer.
Common mistakes
- Jumping to a root cause without first ruling out tracking or measurement issues.
- Analyzing total traffic without segmenting by source, which hides where the real problem is.
Likely follow-up questions
- What would you do if the drop is isolated to mobile users only?
- How would you communicate this to the editorial team?
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More questions from Carta
Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 9: Prove it paid off: outcomes, economics, and pricing
- Chapter 2: Data fluency: SQL, logs, and reading the truth yourself
- Chapter 14: Get the job: the AI PM interview loop