Diagnose a drop in retention

Last updated: February 22, 2026

Quick Overview

The activation rate dropped by 15% this week. Walk through your investigation process.

Expedia
Product / Decision Making
Data Scientist
Expedia
February 22, 2026
Data Scientist
Phone Screen
Product / Decision Making
Medium

2

0

2,260 solved


The activation rate dropped by 15% this week. Walk through your investigation process.

This product question from Expedia's Phone Screen goes beyond feature brainstorming. The interviewer expects a framework-driven approach that considers market dynamics, user segmentation, and data-informed decision making.

What the Interviewer Expects
  • Apply a structured framework for product thinking (user, problem, solution, metrics)
  • Segment users and identify differentiated needs
  • Prioritize features using a clear framework (RICE, ICE, impact vs effort)
  • Define comprehensive success metrics across the user funnel
  • Consider competitive dynamics and market positioning
Key Topics to Cover
Product strategy and vision
User research and problem identification
Go-to-market strategy
Competitive analysis
Growth loops and retention
How to Approach This
  1. Start with the user. Who are they, what problem do they have, and what is their current workaround?
  2. Use a prioritization framework: impact vs effort, RICE scoring, or ICE scoring.
  3. Define success metrics using the AARRR framework: Acquisition, Activation, Retention, Revenue, Referral.
  4. Consider second-order effects. A feature might boost short-term engagement but hurt long-term retention.
Possible Follow-up Questions
  • How would you validate this idea before committing engineering resources?
  • What competitive response would you expect and how would you prepare?
  • How would you decide to kill this feature if it's not working?
  • How would you sequence the rollout across different user segments?
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