Product Manager interview question
How do you use RICE prioritization?
RICE scores an initiative as reach multiplied by impact and confidence, divided by effort. Use consistent scales and evidence, show uncertainty, compare like time horizons, and treat the score as decision input rather than truth.
Direct answer
What a strong answer covers
How it works
RICE turns a debate into a comparable number. Reach is how many users or events an initiative touches in a period, from real data. Impact is the size of effect per user on the goal, scored on a small fixed scale such as 0.25 to 3. Confidence is how much evidence backs the reach and impact estimates, as a percentage that penalises guesses. Effort is person-weeks from the team. The score is reach times impact times confidence, divided by effort. Its value is in forcing the inputs to be written down and questioned; two initiatives within 20 percent of each other are a tie, and strategy, dependencies, and timing still decide.
Example
A team scored a checkout redesign at reach 40,000 monthly users, impact 2, confidence 80 percent from a usability study, effort 6 weeks, giving 10,667; a referral feature at reach 10,000, impact 3, confidence 40 percent because there was no evidence, effort 4 weeks, giving 3,000. The referral advocate then ran a two-week test that raised confidence to 70 percent, and the ranking was revisited rather than argued.
Common mistakes
- Using different reach periods for different initiatives.
- Setting confidence at 100 percent for a guess.
- Treating a 5 percent score difference as a decision.
A useful answer structure
Answer from your own work.
Do not memorise a script: use only examples you can explain honestly in follow-up questions.
Open the desktop workspace and rehearse a clear answer in your own words.