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Table 3 Conditional process analysis

From: Mobile phone addiction and depression among Chinese medical students: the mediating role of sleep quality and the moderating role of peer relationships

Model

Model 1: The total effect model (criterion: depression)

R

R2

F

P

β

t

P

0.41

0.17

18.55

< 0.001

 

Constant

−0.49

−1.80

0.07

Only child

0.25**

2.69

< 0.01

Family income per month

−0.04

− 0.99

0.32

Family area

0.08

0.70

0.48

Time spent on the phone every day

0.07

1.24

0.21

Mobile phone addiction

0.34***

7.42

< 0.001

Model 2: Mediator variable model (criterion: poor sleep quality)

R

R2

F

P

β

t

P

0.36

0.13

9.51

< 0.001

 

Constant

−0.41

−1.46

0.14

Only child

0.14

1.52

0.12

Family income per month

0.08

1.72

0.08

Family area

−0.11

−0.94

0.34

Time spent on the phone every day

0.04

0.62

0.53

Mobile phone addiction

0.22***

4.81

< 0.001

Peer relationships

−0.21***

−4.75

< 0.001

Mobile phone addiction x Peer relationships

0.04

1.08

0.27

Model 3: Dependent variable model (criterion: depression)

R

R2

F

P

β

t

P

0.71

0.50

50.81

< 0.001

 

Constant

−0.49*

−2.31

0.02

Only child

0.17*

2.32

0.02

Family income per month

−0.02

−0.65

0.51

Family area

0.14*

1.58

0.11

Time spent on the phone every day

0.05

1.03

0.30

Mobile phone addiction

0.20***

5.44

< 0.001

Poor sleep quality

0.49***

13.74

< 0.001

Peer relationships

−0.21***

−5.96

< 0.001

Poor sleep quality x Peer relationships

−0.11**

−3.11

0.002

Mobile phone addiction x Peer relationships

−0.03

−1.15

0.24

  1. N = 450
  2. *p < 0.05
  3. **p < 0.01
  4. ***p < 0.001