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. 2021 Feb 10;8(2):e23917. doi: 10.2196/23917

Table 2.

Comparisons of scores between groups over time using a linear mixed model (N=125).

Variables and groups Baseline (T0) Week 12 (T1)a Week 20 (T2)a Group Time Time × group
Mean (SD) Mean (SD) Mean (SD) F value (P value) F value (P value) F value (P value)
Self-rating Anxiety Scale

Control (n=60) 49.52 (7.78) 47.85 (8.02) 46.53 (7.67) 4.906 (.03) 93.760 (<.001) 14.219 (<.001)

WBPTb (n=65) 48.65 (6.53) 44.44 (6.63) 42.64 (6.32) N/Ac N/A N/A
Self-rating Depression Scale

Control (n=60) 49.13 (7.66) 47.69 (7.38) 46.36 (7.33) 4.457 (.04) 154.830 (<.001) 26.563 (<.001)

WBPT (n=65) 48.24 (7.72) 44.09 (7.80) 42.32 (7.60) N/A N/A N/A
Parenting Stress Index-Short Form

Parenting distress


Control (n=60) 35.49 (3.23) 34.88 (2.95) 35.45 (3.96) 4.083 (.045) 53.994 (<.001) 38.792 (<.001)


WBPT (n=65) 36.31 (4.29) 33.57 (3.97) 32.09 (3.62) N/A N/A N/A

Parent-child dysfunctional interaction


Control (n=60) 34.88 (2.95) 32.31 (3.07) 33.60 (3.78) 6.350 (.01) 34.508 (<.001) 60.743 (<.001)


WBPT (n=65) 33.57 (3.97) 30.48 (4.46) 28.80 (4.14) N/A N/A N/A

Difficult child


Control (n=60) 35.45 (3.96) 34.01 (3.40) 34.82 (4.07) 2.507 (.12) 11.629 (<.001) .741 (.45)


WBPT (n=65) 32.09 (3.62) 32.74 (4.63) 33.52 (4.28) N/A N/A N/A

Parenting Stress Index-Short Form total score


Control (n=60) 101.56 (6.77) 98.22 (8.59) 103.88 (6.82) 8.176 (.005) 69.315 (<.001) 68.572 (<.001)


WBPT (n=65) 102.92 (10.27) 92.98 (13.18) 94.41 (9.17) N/A N/A N/A
Herth Hope Index

Temporality and future


Control (n=60) 10.75 (1.24) 9.60 (1.32) 9.23 (1.41) 49.276 (<.001) 1.685 (.12) 85.808 (<.001)


WBPT (n=65) 10.67 (1.27) 11.53 (1.51) 12.23 (1.75) N/A N/A N/A

Positive readiness and expectancy


Control (n=60) 11.46 (1.03) 10.01 (1.44) 9.70 (1.35) 74.080 (<.001) 2.228 (.11) 89.652 (<.001)


WBPT (n=65) 11.28 (1.28) 12.21 (1.35) 12.76 (1.44) N/A N/A N/A

Interconnectedness


Control (n=60) 11.25 (1.12) 10.25 (1.84) 10.00 (2.02) 50.344 (<.001) 5.690 (.004) 67.373 (<.001)


WBPT (n=65) 11.16 (1.33) 12.42 (1.46) 13.05 (1.53) N/A N/A N/A

Herth Hope Index total score


Control (n=60) 33.46 (1.92) 29.86 (3.18) 28.93 (3.39) 105.581 (<.001) 4.787 (.009) 197.608 (<.001)


WBPT (n=65) 33.11 (2.81) 36.16 (3.22) 38.04 (3.62) N/A N/A N/A

aLinear interpolation.

bWBPT: WeChat-based parenting training.

cN/A: not applicable.