Table 5.
Results of the satisfaction questionnaire.
| Questions | Punctuation [proportion (%)] | |||||
|---|---|---|---|---|---|---|
| 1-day pilot test | 1-month usability test | |||||
| <6 | >6 | <6 | >6 | |||
| How many apps have you used? | 16/39 (41%) | 23/39 (59%) | 13/39 (33.3%) | 26/39 (66.7%) | ||
| YES | NO | YES | NO | |||
| Have you used/do you use any nutrition apps? | 3/39 (7.69%) | 36/39 (92.3%) | 16/39 (41%) | 23/39 (59%) | ||
| YES | NO | YES | NO | |||
| Do you think nutrition apps can help make changes in eating habits and physical activity? | 41/41 (100%) | 0 | 37/39 (94.9%) | 2/39 (5.13%) | ||
| 1–3 | 4–6 | 7–9 | 1–3 | 4–6 | 7–9 | |
| General user impression of the app | ||||||
| Very Bad-Very Good | 0 | 3/37 (8.11%) | 34/37 (91.9%) | 1/39 (2.56%) | 19/39 (48.8%) | 19/39 (48.8%) |
| Frustrating-Nice | 0 | 1/34 (2.94%) | 33/34 (97.1%) | 2/39 (5.13%) | 14/39 (35.9%) | 23/39 (59.0%) |
| Boring-Stimulating | 0 | 3/36 (8.33%) | 33/36 (91.7%) | 2/39 (5.13%) | 24/39 (61.5%) | 13/39 (33.3%) |
| Difficult-Easy | 0 | 4/31 (12.9%) | 27/31 (87.1%) | 0 | 10//39 (25.6%) | 29//39 (74.4%) |
| Screenshots | ||||||
| Letters on the app display (Hard to Read-Easy to Read) | 0 | 0 | 42/42 (100%) | 1/39 (2.56%) | 8/39 (20.5%) | 30/39 (76.9%) |
| Highlighting of items on the screen (Unhelpful-Very useful) | 0 | 0 | 40/40 (100%) | 0 | 11/39 (28.2%) | 28/39 (71.8%) |
| Format of the screens was useful (Never-Always) | 0 | 1/41 (2.44%) | 40/41 (97.6%) | 1/39 (2.56%) | 8/39 (20.5%) | 30/39 (76.9%) |
| Screen sequence (Confusing-Clear) | 0 | 0 | 39/39 (100%) | 0 | 12/39 (30.8%) | 27/39 (69.2%) |
| Terminology and Information about the app | ||||||
| Use of terminology in the app (Inconsistent-Consistent) | 0 | 0 | 38/38 (100%) | 0 | 7/39 (18%) | 32/39 (82%) |
| Is the terminology appropriate given the task you are doing? (Never-Always) | 0 | 1/38 (2.63%) | 37/38 (97.4%) | 0 | 7/39 (18%) | 32/39 (82%) |
| Learning | ||||||
| Learning to use the app (Difficult-Easy) | 0 | 5/38 (13.2%) | 33/38 (86.8%) | 0 | 3/39 (7.69%) | 36/39 (92.3%) |
| Exploring the app by trial and error (Discouragement-Feedback) | 0 | 1/36 (2.78%) | 35/36 (97.2%) | 3/39 (7.7%) | 13/39 (33.3%) | 23/39 (59.0%) |
| Tasks can be conducted without difficulty (Never-Always) | 0 | 3/36 (8.33%) | 33/36 (91.7%) | 2/39 (5.13%) | 8/39 (20.5%) | 29/39 (74.4%) |
| Number of steps per task (Too Many-Fair) | 0 | 4/33 (12.1%) | 29/33 (87.9%) | 5/39 (12.82%) | 9/39 (23.1%) | 25/39 (64.1%) |
| Steps to complete a task follow a logical sequence (Never-Always) | 0 | 3/39 (7.69%) | 36/39 (92.3%) | 0 | 12/39 (30.8%) | 27/39 (69.2%) |
| System capacity | ||||||
| System speed (Too Slow-Very Fast) | 0 | 1/39 (2.56%) | 38/39 (97.4%) | 1/39 (2.56%) | 10/39 (25.6%) | 28/39 (71.8%) |
| The system is reliable (Never-Always) | 0 | 0 | 40/40 (100%) | 1/39 (2.56%) | 6/39 (15.4%) | 32/39 (82.1%) |
| Correct my mistakes (Difficult-Easy) | 0 | 2/36 (5.56%) | 34/36 (94.4%) | 2/39 (5.13%) | 11/39 (28.2%) | 26/39 (66.7%) |
| System ease of use depends on my level of experience (Never-Always) | 0 | 1/40 (2.5%) | 39/40 (97.5%) | 4/39 (10.26%) | 18/39 (46.2%) | 17/39 (43.6%) |
| Multimedia | ||||||
| Quality of illustrations and photographs (Bad-Good) | 0 | 0 | 39/39 (100%) | 2/39 (5.13%) | 11/39 (28.2%) | 26/39 (66.7%) |
| Colors used (Artificial- Natural) | 0 | 0 | 39/39 (100%) | 1/39 (2.56%) | 7/39 (18%) | 31/39 (79.5%) |
| Nutritional messages | ||||||
| Clear messages (Disagree - Agree) | 0 | 3 (7.69%) | 36/39 (92.3%) | 6/39 (15.38%) | 10/39 (25.6%) | 23/39 (59%) |
| Useful messages (Disagree - Agree) | 0 | 0 | 39/39 (100%) | 5/39 (12.82%) | 11/39 (28.2%) | 23/39 (59.0%) |
| Relevant messages (Disagree-OK) | 0 | 1/38 (2.63%) | 37/38 (97.4%) | 4/39 (10.26%) | 14/39 (35.9%) | 21/39 (53.8%) |
| Persuasive potential to improve diet/physical activity (Very Low Potential - High Potential) | 0 | 5/36 (13.9%) | 31/36 (86.1%) | 6/39 (15.38%) | 14/39 (35.9%) | 19/39 (48.7%) |
| What part of the design of SAlBi educa do you consider to be the most motivating/useful? (Proportion) | • Images (4/42) • Tailored feedback messages (29/42) • Clarity of messages (28/42) • Graphics (30/42) • Recipe examples (4/42) |
• General recommendations (22/39) • Color and quality of photos (2/39) • Graphics (23/39) • Feedback messages (23/39) • Recipes (1/39) |
||||
| If you could make any modifications in SAlBi educa to improve it, what would you change? (Proportion) | • Database with most common dishes (20/42) • Alphabetical order of dishes and products (12/42) • Starting tutorial (15/42) • More intuitive tool for removing a dish or product (24/42) • Copy meals functionality (25/42) |
• Improve food search (9/39) • Healthy alternatives (5/39) • Possibility of introducing food and dishes and type of cooking (14/39) |
||||
| YES | NO | YES | NO | |||
| Would you use SAlBi educa in the future? | 38/40 (95%) | 2/40 (5%) | 29/39 (74.4%) | 10/39 (25.6%) | ||
| Would you recommend SAlBi educa to other users? | 38/38 (100%) | 0 | 30/39 (76.9%) | 9/39 (23.1%) | ||
| Is there another nutrition app you would prefer to use instead of SAlBi educa? | 1/32 (3.13%) | 31/32 (96.87%) | 4/39 10.3%) | 35/39 (89.7%) | ||