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Table 3 Comparison of pre and post-test mean SDQ scores for the control arm

From: Implementation of a non-randomized controlled trial of yoga-based intervention to reduce behavioural issues in early adolescent school-going children in Sri Lanka

SDQ scales and sub scales

Pre- intervention Mean (SD)

Post- intervention Mean (SD)

t- statistic

p- value

Parent

 Externalizing behaviours

3.9 (2.2)

11.2 (2.4)

−50.48

0.001

  Conduct problems

1.8 (1.3)

4.2 (1.6)

−25.89

0.001

  Hyperactivity

2.2 (1.3)

7.0 (1.7)

−51.36

0.001

 Internalizing behaviours

3.8 (1.8)

13.8 (2.3)

− 76.41

0.001

  Emotional problems

1.8 (0.9)

7.0 (1.6)

−65.58

0.001

  Peer problems

2.0 (1.5)

6.8 (1.7)

−47.57

0.001

Total difficulty score

7.8 (3.3)

25.0 (3.6)

−80.31

0.001

Pro social score

8.0 (1.8)

3.9 (1.2)

43.11

0.001

Teacher

 Externalizing behaviours

9.9 (2.6)

12.8 (2.2)

−18.58

0.001

  Conduct problems

3.7 (1.7)

5.9 (1.5)

−22.46

0.001

  Hyperactivity

6.3 (1.6)

6.9 (1.6)

−5.84

0.001

 Internalizing behaviours

10.2 (4.1)

13.5 (2.7)

−16.89

0.001

  Emotional problems

5.0 (2.9)

6.3 (1.7)

−9.46

0.001

  Peer problems

5.1 (1.9)

7.2 (1.7)

−19.17

0.001

Total difficulty score

20.1 (5.6)

26.3 (3.7)

−22.02

0.001

Pro social score

3.8 (1.8)

2.4 (1.5)

13.46

0.001

Student

 Externalizing behaviours

7.2 (2.9)

13.5 (2.3)

−38.16

0.001

  Conduct problems

3.3 (1.9)

6.6 (1.6)

−30.20

0.001

  Hyperactivity

3.9 (1.7)

6.8 (1.6)

−28.49

0.001

 Internalizing behaviours

6.6 (3.0)

13.1 (2.4)

−38.08

0.001

  Emotional problems

3.6 (1.9)

6.7 (1.7)

−27.14

0.001

  Peer problems

3.0 (1.8)

6.4 (1.6)

−31.45

0.001

Total difficulty score

13.8 (4.9)

26.5 (3.7)

−47.91

0.001

Pro social score

6.7 (1.6)

8.1 (1.7)

13.13

0.001