Table 5.
Assessment as to whether compliance with the 9 quality principles could be determined on the basis of the available app descriptions (Q3, scale “yes,” “no,” and “do not know”), on the basis of N=343 assessments (3087 individual responses overall).
| Item | Yes, n (%) | No, n (%) | Do not know, n (%) | No data, n (%) |
| Practicality | 246 (71.7) | 79 (23.0) | 17 (5.0) | 1 (0.3) |
| Risk adequacy | 93 (27.1) | 198 (57.7) | 52 (15.2) | —a |
| Ethical soundness | 92 (26.8) | 211 (61.5) | 40 (11.7) | —a |
| Legal conformity | 76 (22.2) | 231 (67.3) | 36.0 (10.5) | —a |
| Content validity | 93 (27.1) | 210 (61.2) | 37 (10.8) | 3 (0.9) |
| Technical adequacy | 100 (29.2) | 199 (58.0) | 41 (12.0) | 3 (0.9) |
| Usability | 137 (39.9) | 179 (52.2) | 25 (7.3) | 2 (0.6) |
| Resource efficiency | 68 (19.8) | 205 (59.8) | 69 (20.1) | 1 (0.3) |
| Transparency | 58 (16.9) | 213 (62.1) | 72 (21.0) | —a |
| Total number | 963 (31.20) | 1725 (55.88) | 389 (12.60) | 10 (0.32) |
aNot applicable.