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Table 6 The interaction effects between time and each of the three BCTs on SB. Means and 95% confidence intervals are displayed

From: Which behaviour change techniques are effective to promote physical activity and reduce sedentary behaviour in adults: a factorial randomized trial of an e- and m-health intervention

SB (hours/day) Groups who did not receive the technique Groups who received the technique t-value (df) p-value Effect size
Action planning Pre-test 11.80 [11.01; 12.60] 12.32 [11.50; 13.14] −0.952 (103.94) 0.343 −0.64 [−1.95; 0.67]
Post-test 10.30 [9.25; 11.36] 10.17 [9.01; 11.35]
Coping planning Pre-test 11.95 [11.10; 12.81] 12.21 [11.55; 12.98] −0.084 (104.05) 0.933 −0.06 [−1.37; 1.26]
Post-test 10.14 [8.93; 11.35] 10.33 [9.29; 11.37]
Self-monitoring Pre-test 11.93 [11.15; 12.70] 12.25 [11.40; 13.09] −2.573 (100.66) 0.012 a −1.66 [−2.93; −0.40]
Post-test 10.80 [9.67; 11.94] 9.70 [8.62; 10.79]
  1. a p < 0.05 = significant differences in SB from pre- to post-test between groups who did not receive the technique and groups who received the technique. Ninety five percent confidence intervals are shown in square brackets. Df = degrees of freedom. Effect size = absolute effect size in hours/day