Table 2 Correlation analysis of variables.

From: Physical activity and internalization problems in middle school students: the chain mediating role of rumination thinking and peer acceptance

Variable

M ± SD

1

2

3

4

5

6

1.Gender

–

–

     

2.Age

13.99 ± 0.76

− 0.74

1

    

3.Physical exercise

27.18 ± 6.22

− 0.233**

0.051

1

   

4.Rumination

1.95 ± 0.61

− 0.110**

0.022

− 0.189**

1

  

5.Peer acceptance

5.17 ± 1.65

− 0.142**

− 0.011

0.391**

− 0.201**

1

 

6.Internalizing problems

29.77 ± 8.65

− 0.215**

0.034

− 0.286**

0.389**

− 0.471**

1

  1. * p < 0.05, ** p < 0.01, *** p < 0.001.
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