Table 2.
Observed means (standard deviations) for measures and within-group effect sizes in the full sample.
| Baseline Mean (SD) |
Post-CBM Mean (SD) |
Within t(df) r |
Between t(df) |
Post-iCBT Mean (SD) |
Within t(df) r |
Between t(df) |
3 Month Mean (SD) |
Within t(df) r |
Between t(df) |
|
|---|---|---|---|---|---|---|---|---|---|---|
| T1 | T2 | ES (95% CI) T1, T2 | ES (95% CI) T1, T2 | T3 | ES (95% CI) T1, T3 | ES (95% CI) T1, T3 | T4 | ES (95% CI) T3, T4 | ES (95% CI) T3, T4 | |
| PHQ9 Positive | 16.22 (5.34) | 8.97 (5.95) | 6.09 (3202.30)⁎⁎r=.38 | 1.27 (1219.89) | 8.68 (6.56) | 5.96 (3206.16)⁎⁎r=.49 | .92 (1233.59) | 9.21 (6.62) | .32 (3204.78) r=.63 | .92 (1233.59) |
| 1.13 (.66–1.59) | .27 (−.17 to .73) | 1.06 (.56–1.55) | .26 (−.22 to .74) | .04 (−.44 to .52) | .17 (−.31 to .65) | |||||
| PHQ9 Control | 15.33 (4.89) | 10.74 (6.56) | 4.01 (3202.30)⁎⁎r=.53 | 10.35 (6.08) | 4.28 (3206.96)⁎⁎r=.15 | 8.06 (6.19) | 1.59 (3207.72) r=.27 | |||
| .62 (.17–1.06) | .96 (.48–1.43) | .33 (−.15 to .81) | ||||||||
| BDI-II Positive | 31.05 (8.48) | 20.36 (7.82) | 5.72 (3200.72)⁎⁎r=.51 | 1.47 (1162.13) | 15.50 (11.88) | 7.76 (3203.29)⁎⁎r=.65 | 1.15 (1178.72) | 17.33 (12.70) | .91 (3202.24) r=.60 | 1.15 (1178.72) |
| .94 (.47–1.40) | .34 (−.11 to .80) | 1.14 (.64–1.63) | .32 (−.15 to .81) | .14 (−.34 to .62) | .25 (−.23 to .73) | |||||
| BDI-II Control | 31.84 (10.93) | 24.15 (13.10) | 4.28 (3200.72)⁎⁎r=.65 | 19.23 (10.68) | 6.79 (3203.87)⁎⁎r=.42 | 14.06 (12.26) | 2.03 (3203.19) r=.37 | |||
| .57 (.12–1.01) | 1.25 (.77–1.72) | .39 (−.09 to .87) | ||||||||
| AST-D Positive | 3.75 (.95) | 4.65 (.89) | 3.83 (1141.48)⁎⁎r=.38 | .97 (173.00) | ||||||
| .71 (.24–1.17) | .22 (−.23 to .67) | |||||||||
| AST-D Control | 3.59 (1.18) | 4.45 (.91) | 3.78 (1141.48)⁎⁎r=.29 | |||||||
| .72 (.27–1.16) | ||||||||||
| K10 Positive | 30.36 (6.54) | 25.13 (6.48) | 4.54 (3200.37)⁎⁎r=.65 | 1.23 (1155.05) | 19.56 (6.87) | 8.61 (3202.79)⁎⁎r=.49 | 1.79 (1171.22) | 22.12 (7.53) | 2.01 (3201.78) r=.59 | 1.79 (1171.22) |
| .63 (.16–1.09) | .30 (−.14 to .76) | 1.53 (1.03–2.02) | .50 (.01–.99) | .31 (−.17 to .79) | .11 (−.37 to .59) | |||||
| K10 Control | 31.56 (6.30) | 27.15 (6.50) | 3.99 (3200.37)⁎⁎r=.71 | 23.11 (7.09) | 7.32 (3203.33)⁎⁎r=.48 | 21.27 (7.73) | 1.04 (3202.67) r=.50 | |||
| .48 (.03–.92) | 1.28 (.69–1.64) | .18 (−.30 to .66) |
Note. T1=Baseline, T2=Post-CBM, T3=Post-CBM+ iCBT, T4=3-month follow-up. PHQ9=Patient Health Questionnaire-9 item; BDI-II=Beck Depression Inventory-2nd Edition; K10=Kessler Distress Scale – 10 item; AST-D=Ambiguous Scenarios Test for Depression. Within-group ES=Cohen׳s d based on the formula: d=t*SQRT[2(l−r)/n]. N T1: Positive=36, Control=39; T2: Positive=36, Control=39; T3: Positive=32, Control=34; T4: Positive=33, Control=33.
⁎⁎
p<.001.