Neutral Probing: The 'Five Whys' and Strategic Silence

When a participant mentions a frustration or takes an unexpected action, novice interviewers rush to explain the design or offer solutions. Master researchers use two essential tools:

1. The Neutral Probe: Mirror the participant's words without judgment:
   • User: 'This table looks cluttered.'
   • Researcher: 'When you say cluttered, what stands out to you?'
2. The 5-Second Silence: After a user answers, wait 3 to 5 seconds before speaking. Uncomfortable with silence, the participant will often elaborate and reveal their deepest mental model.