Table 1.
Participant, labor hours, and costs of the three test conditions.
| Category | CLT1) | HUT | N-HUT |
|---|---|---|---|
| Participant | |||
| Recruiting | 108 | 120 | 120 |
| Finish | 104 | 120 | 111 |
| Attendance rate | 96.3% | 100.0% | 92.5% |
| Labor hour (h) | |||
| Recruiting | 1 | 1 | 3 |
| Sample preparation and/or delivery | 6 | 6 | 8 |
| Sample serving | 36 | – | – |
| Panel monitoring | 4 | 4 | |
| Paper work | 1 | 2 | 2 |
| Total | 44 | 13 | 17 |
| Cost (USD)2) | |||
| Materials and package3) | 4.2 | 51.0 | 65.5 |
| Delivery cost | – | – | 304.64) |
| Panel compensation | 733.1 | 1691.8 | 1956.2 |
| Total | 737.4 | 1742.8 | 2326.2 |
| Per capita | 7.1 | 14.5 | 20.9 |
1CLT, HUT and N-HUT mean central location test, home-use test, and no-contact home-use test, respectively.
2USD: Korean Won is 1: 1,262, average exchange ratio from 14 April to 16 June 2022.
3Commonly used material costs were excluded.
4Twenty-five percent discount was offered due to bulk shipment (above 100).