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Table 4 Pre- and post-test effects of a brief mindfulness-based intervention on senior students (n = 30)

From: Effects of a brief mindfulness-based intervention on emotional regulation and levels of mindfulness in senior students

Instrument and evaluation   Mean Median SD t/Z p CI p I d/r
PHLMS_Awareness1 Pre 24.67 24.50 5.39 4.23 0.0001*** 0.000011–0.00036 0.77aa
Post 28.83 29.00 5.79
PHLMS_Acceptance1 Pre 17.40 19.00 5.78 2.06 0.048* 0.02581–0.0681 0.37
Post 19.93 20.00 7.15
DERS_TOTAL2 Pre 84.90 85.00 17.05 − 4.26 0.0001*** 0.0000–0.00046 − 0.55aaa
Post 70.23 66.00 13.33
DERS_non-acceptance2 Pre 13.37 12.50 5.38 − 2.98 0.003** 0.00206–0.00514 − 0.38aa
Post 10.80 10.50 4.08
DERS_goals2 Pre 15.87 17.00 4.03 − 2.36 0.018* 0.01476–0.02164 − 0.31aa
Post 13.83 13.50 3.82
DERS_impulse2 Pre 12.37 12.00 4.06 − 3.47 0.001** 0.00000–0.00092 − 0.44aa
Post 9.80 9.00 3.07
DERS_awareness2 Pre 15.90 15.50 4.35 − 3.02 0.003** 0.00044–0.00236 − 0.39aa
Post 13.50 13.50 4.07
DERS_strategies2 Pre 16.67 17.00 4.63 − 3.91 0.0001*** 0.00000–0.00046 − 0.50aaa
Post 13.47 12.00 3.73
DERS_clarity2 Pre 10.73 10.50 3.73 − 2.79 0.005** 0.00019–0.00181 − 0.36aa
Post 8.83 8.50 2.11
  1. Note. 1Variables with normal distribution analyzed by the paired t test; effect size: d. 2Non-parametric variables analyzed by the Wilcoxon signed-rank test (Z); effect size: r. *p < 0.05; **p < 0.01; ***p < 0.001. aaMedium effect size. aaaLarge effect size. Confidence interval was 95% for the test level of significance