Reference table
How many people to invite for 10 interviews, by list
Planning assumptions for an invitation plus one reminder, not measured benchmarks
A planning table for founders and researchers who recruit interview participants by email. For four kinds of list it gives a planning range for the share of people who complete an interview after an invitation and one reminder, and the number of invitations that implies for 10 interviews. The ranges are starting assumptions drawn from practitioner reports, not measured benchmarks. Koji shows the real funnel per send, from emailed to completed, so you can replace them quickly.
Where this appears
What's in this reference table
| List | Plan for this share | Invite for 10 interviews |
|---|---|---|
| Active users | 15% to 25% complete | 40 to 67 |
| Recent signups | 8% to 15% complete | 67 to 125 |
| Churned customers | 3% to 8% complete | 125 to 334 |
| Cold contacts | 1% to 5% complete | 200 to 1,000 |
Use this image
Free to use in your docs, decks and posts under CC BY 4.0, as long as you credit Koji with a link to this page. To embed it, paste this into your page:
html
<a href="https://www.koji.so/visuals/how-many-people-to-invite-for-10-interviews-by-list"><img src="https://www.koji.so/visuals/how-many-people-to-invite-for-10-interviews-by-list/how-many-people-to-invite-for-10-interviews-by-list.png" alt="Table of invitations needed for 10 interviews by list: active users 40 to 67, recent signups 67 to 125, churned 125 to 334, cold 200 to 1,000." width="1200" height="630" /></a>
<p>Source: <a href="https://www.koji.so/visuals/how-many-people-to-invite-for-10-interviews-by-list">How many people to invite for 10 interviews, by list</a>, Koji</p>
