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Psychology: Research and Review

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