226 Chapter 4 APPENDIX A Pre-test and change in secondary outcomes over the study (completers only sample). Assessment MindLight CBT Mean differencea SD 95 % CI Social self-efficacy Pre-test 2.34 2.28 Post-test – pre-testb 0.21 0.22 0.01 0.62 [-0.10, 0.11] d 3-months FU – pre-testb 0.31 0.31 -0.01 0.62 [-0.11, 0.10] d 6-months FU – pre-testb 0.39 0.34 -0.05 0.65 [-0.16, 0.06] d n 82 83 Emotional self-efficacy Pre-test 1.84 1.84 Post-test – pre-test b 0.26 0.36 0.10 0.73 [-0.03, 0.22] d 3-months FU – pre-test b 0.41 0.50 0.09 0.73 [-0.03, 0.22] d 6-months FU – pre-test b 0.55 0.52 -0.03 0.84 [-0.17, 0.11] d n 82 83 Academic self-efficacy Pre-test 2.43 2.28 Post-test – pre-test b 0.19 0.26 0.08 0.55 [-0.02, 0.17] d 3-months FU – pre-test b 0.31 0.34 0.03 0.61 [-0.07, 0.14] d 6-months FU – pre-test b 0.24 0.36 0.12 0.59 [0.01, 0.22] e n 79 78 Internalising problems Pre-test 4.58 4.62 Post-test – pre-test c -1.28 -0.93 -0.35 2.46 [-0.77, 0.07] d 3-months FU – pre-test c -1.31 -1.56 0.25 2.34 [-0.16, 0.65] d 6-months FU – pre-test c -1.68 -1.35 -0.33 2.83 [-0.83, 0.18] d n 67 66 Externalising problems Pre-test 5.42 5.87 Post-test – pre-test c -0.48 -1.09 0.61 2.17 [0.24, 0.97] f 3-months FU – pre-test c -0.63 -0.76 0.12 2.23 [-0.26, 0.51] d 6-months FU – pre-test c -0.63 -1.06 0.43 2.37 [0.01, 0.85] f 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 left of zero, indicating significant differences in favour of MindLight. f 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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