Table 1.
Differences in app engagement and user experience.
| Sample A | Sample B (renewed version) | Test-statistic | P value | Effect size (d) | ||
|---|---|---|---|---|---|---|
| App engagement (RQ1) | N = 1269 | N = 386 | ||||
| ESM compliance (%) (H1a) | 25.65 (26.37) | 23.78 (22.03) | t(750,400) = −1.39 | .206 | 0.07 | |
| Challenges (%) (H1b) | 40.73 (32.29) | 40.80 (29.32) | t(692,905) = 0.36 | .971 | 0.00 | |
| User experience (RQ2) | N = 659 | N = 137–141a | ||||
| User evaluation (H2a) | 7.19 (1.31) | 7.22 (1.70) | t(177,596) = 0.21 | .831 | 0.02 | |
| Design (H2b) | 7.94 (1.33) | 8.10 (1.38) | t(794) = 1.28 | .202 | 0.12 | |
| Recommendability (H2c) | 73.0% yes (481/659) | 65.7% yes (93/141) | χ2 = 2.83 | .091 | - |
a
Not all participants finished the last questions of the online follow-up questionnaire, therefore the sample size differs.