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Real World Trial
Referral Willingness Test
A program where the team targets satisfied existing customers and asks them to invite others to use the product or service. The team then observes whether these customers are willing to refer it, indicating desirability.
When This Method Fits
Typical duration
Weeks – Months
Typical cost
Medium
Fidelity level
Live Full
Stage
Discovery
Hypothesis type
Desirability, Viability
Goal type
Deepen product-market fit, Scale the model
Randomization
N/A
Study design
Individual case report
Minimum units needed
20
1Best Fit When
Best when you want a genuine desirability signal based on real advocacy behavior, not just satisfaction survey scores.