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Table 4 Means and standard deviations for manipulation check variables and their correlations with change scores

From: A randomised active-controlled trial to examine the effects of an online mindfulness intervention on executive control, critical thinking and key thinking dispositions in a university student sample

   Sham Meditation   Mindfulness Meditation Overall
N M SD ΔHCTA ΔHB ΔSWM ΔOBS ΔNR N M SD ΔHCTA ΔHB ΔSWM ΔOBS ΔNR M SD
Meditation Quantity 48 14.85 12.52 0.53** −0.03 − 0.11 0.47** 0.27 43 15.72 13.61 0.32* −0.13 0.17 0.36* 0.23 15.26 12.98
Week 2 TAM Barriers 21 23.51 29.65 0.25 −0.27 − 0.29 − 0.04 − 0.07 25 28.49 32.08 − 0.07 − 0.18 − 0.03 0.42 0.07 26.22 30.75
Week 4 TAM Barriers 35 5.69 2.74 − 0.05 − 0.06 0.00 − 0.38* 0.02 28 4.93 1.92 0.08 0.12 −0.09 − 0.39* − 0.03 5.35 2.42
Week 2 TAM Ease 21 35.97 31.44 0.17 −0.10 − 0.38 − 0.12 − 0.42 25 31.99 28.24 − 0.12 −0.23 − 0.19 0.22 0.06 33.80 29.48
Week 4 TAM Ease 35 14.00 1.41 0.29 −0.15 −0.15 0.34* 0.03 28 14.04 1.57 0.07 −0.12 0.37 0.21 0.00 14.02 1.48
Week 2 TAM Enjoyment 21 7.52 3.27 −0.13 −0.07 0.18 0.22 0.12 25 8.20 3.33 0.26 0.21 0.07 −0.36 −0.02 7.89 3.28
Week 4 TAM Enjoyment 35 9.57 2.34 0.08 0.00 −0.19 0.05 0.24 28 10.86 1.67 −0.08 −0.02 0.09 0.07 −0.13 10.14 2.15
Week 2 Satisfaction 21 3.76 .77 0.10 −0.15 0.04 0.12 −0.14 25 3.96 0.68 0.27 −0.11 −0.04 0.05 −0.03 3.87 0.72
Week 4 Satisfaction 35 3.50 .86 0.00 −0.14 −0.03 0.18 −0.16 28 4.10 0.43 −0.18 0.01 0.12 −0.01 0.05 3.88 0.72
Week 2 PMQ Perseverance 21 61.81 24.07 0.14 0.04 −0.10 −0.14 −0.40 25 67.04 23.17 0.16 −0.15 −0.14 0.05 0.20 64.65 23.47
Week 4 PMQ Perseverance 35 55.43 21.38 0.24 −0.13 −0.14 0.16 0.15 28 64.55 18.81 0.02 0.24 −0.13 0.11 0.14 59.48 20.63
Week 2 PMQ Receptivity 20 62.05 25.31 0.30 0.35 −0.01 −0.05 −0.18 25 70.01 21.75 0.28 −0.17 −0.02 − 0.20 0.09 66.47 23.47
Week 4 PMQ Receptivity 35 72.73 19.13 −0.05 0.15 0.08 −0.20 −0.26 28 72.39 19.00 0.16 0.13 −0.03 0.08 −0.10 72.58 18.92
  1. Note: Δ = Change score; TAM = Technology Acceptance Model; PMQ = Practice Quality – Mindfulness; HCTA = Halpern Critical Thinking Assessment; SWM = Sternberg Working Memory Task; OBS = Observing Subscale of Five Facet Mindfulness Questionnaire; NR = Non-reactivity of Five Facet Mindfulness Questionnaire
  2. * denotes p < .05
  3. ** denotes p <.01