Table 6. Change-score correlation matrix for key variables at T2.
| Variable |
1 |
2 |
3 |
4 |
5 |
| 1.
Δ cognitive anxiety (T2 - T0) |
-- |
|
|
|
|
| 2.
Δ somatic anxiety (T2 - T0) |
.78** |
-- |
|
|
|
| 3.
Δ self-efficacy (T2 - T0) |
-.71** |
-.66** |
-- |
|
|
| 4.
Δ mindfulness (FFMQ) (T2 - T0) |
-.65** |
-.61** |
.59** |
-- |
|
| 5.
Intervention engagement (minutes; IG only) |
-.52** |
-.48** |
.58** |
.67** |
-- |
Variables 1-4 are change scores from baseline to post-intervention (T2 - T0) and are based on the full intention-to-treat sample (N=70). Variable 5 uses intervention-group app-use data only (n = 35); correlations involving engagement should therefore be interpreted within the intervention group.** p < .01.
