216 Chapter 4 Table 4 Change in secondary outcomes over the study (intention-to-treat sample) Assessment MindLight CBT Mean differencea SD 95 % CI Social self-efficacy Post-test – pre-testb 0.19 0.20 0.01 0.62 [-0.09, 0.10] d 3-months FU – pre-testb 0.33 0.29 -0.04 0.63 [-0.14, 0.06] d 6-months FU – pre-testb 0.38 0.34 -0.04 0.65 [-0.13, 0.06] d n 82 83 Emotional self-efficacy Post-test – pre-test b 0.26 0.34 0.08 0.73 [-0.03, 0.19] d 3-months FU – pre-test b 0.40 0.49 0.08 0.68 [-0.02, 0.19] d 6-months FU – pre-test b 0.54 0.52 -0.02 0.73 [-0.13, 0.10] d n 82 83 Academic self-efficacy Post-test – pre-test b 0.18 0.22 0.04 0.56 [-0.05, 0.12] d 3-months FU – pre-test b 0.31 0.33 0.02 0.61 [-0.08, 0.11] d 6-months FU – pre-test b 0.24 0.33 0.09 0.60 [-0.01, 0.18] d n 79 78 Internalising problems Post-test – pre-test c -1.28 -1.03 -0.25 2.47 [-0.63, 0.13] d 3-months FU – pre-test c -1.32 -1.46 0.15 2.37 [-0.22, 0.51] d 6-months FU – pre-test c -1.47 -1.39 -0.08 2.81 [-0.51, 0.35] d n 67 66 Externalising problems Post-test – pre-test c -0.49 -1.06 0.57 2.17 [0.24, 0.90] e 3-months FU – pre-test c -0.62 -0.79 0.17 2.22 [-0.17, 0.51] d 6-months FU – pre-test c -0.62 -1.02 0.40 2.43 [0.03, 0.77] e n 67 66 Notes. CI = confidence interval. a A negative difference is a difference in favour of MindLight. b A positive score means an increase in self-efficacy. c A negative score means a decrease in problems. d The 95 % CI of the difference in change in secondary outcome lies entirely between the equivalence margins, indicating equivalence of MindLight and CBT. e The 95 % CI of the difference in change in secondary outcome lies entirely to the right of zero, indicating significant differences in favour of CBT.
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