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Table 1 Descriptive statistics and Pearson correlations of the study variables

From: A serial mediation model of social media addiction and college students’ academic engagement: the role of sleep quality and fatigue

Variable

1

2

3

4

5

6

7

1. SMA

1

      

2. Sleep quality

0.357***

1

     

3. Fatigue

0.417***

0.589***

1

    

4. Academic engagement

−0.270***

−0.371***

−0.523***

1

   

5. Gender

−0.049*

0.069**

0.108*

−0.062**

1

  

6. Age

−0.043*

0.064**

0.001

0.004

0.167**

1

 

7. Academic major

−0.071**

0.110**

0.049*

−0.050*

0.014

0.047*

1

M

10.03

5.02

21.57

30.30

19.97

SD

4.509

3.052

6.376

10.499

1.253

  1. Note. SMA = Social media addiction; M = mean; SD = standard deviation. Gender is a dummy code (male = 1; female = 0). Academic major is a dummy code (medical = 1; non-medical = 0). *p < 0.05, **p < 0.01, ***p < 0.001