Usability checklist | Yes n | No n | UI (%)* |
Did you find it easy to read/use the information sheet? | 16 | 0 | 100 |
Did you find it easy to watch/use the instructional video? | 16 | 0 | 100 |
Was it difficult for you to remove the kit components from the pack? | 1 | 15 | 94 |
Did you verify that the silica gel pouch was yellow, to confirm their test was valid for use? | 16 | 0 | 100 |
Did you remove the yellow shield from the lancet? | 16 | 0 | 100 |
Did you have difficulty lancing (pricking) their finger using the blue lancet? | 1 | 15 | 94 |
Did you have difficulty forming a blood droplet? | 5 | 11 | 69 |
Were you able to pick up a blood drop up to the black line of the capillary pipette? | 5 | 11 | 31 |
Were you able to open the green buffer bottle? | 16 | 0 | 100 |
Were you able to use the pink pipette to pick up the buffer? | 15 | 1 | 94 |
Did you drop three drops into the test device well? | 15 | 1 | 94 |
Was a control line present on the test device? | 12 | 4 | 75 |
Did you trust the self-test result? | 15 | 1 | 94 |
Did you quit the process at any point? | 0 | 16 | 100 |
Did you continue the process despite a missed or incorrect step? | 0 | 16 | 100 |
Total UI (%) | 89.6 |
*The UI was calculated based on the method used in the HIVST paper from which the index was extracted.20
HIVST, HIV self-testing; UI, Usability Index.