|
Grade and Parameter Estimate
|
Measure of screen use
|
|---|
|
Overall
|
Social Networking
|
Gaming
|
Web
|
Passive
|
|---|
|
Grade 5
|
|
Intercept
|
2.77 (0.11)***
|
0.70 (0.08)***
|
2.32 (0.11)***
|
1.29 (0.08)***
|
2.19 (0.09)***
|
|
Slope
|
0.05 (0.06)
|
0.12 (0.05)**
|
−0.20 (0.06)**
|
0.00 (0.04)
|
− 0.11 (0.05)
|
|
Intercept* Sex
|
−0.08 (0.17)
|
0.15 (0.12)
|
−0.58 (0.16)***
|
0.12 (0.12)
|
0.22 (0.15)
|
|
Slope* Sex
|
0.02 (0.09)
|
0.14 (0.07)
|
− 0.17 (0.09)
|
0.01 (0.06)
|
− 0.02 (0.07)
|
|
Intercept/Slope
|
−0.55 (0.16)**
|
−0.03 (0.09)
|
− 0.65 (0.16)***
|
−0.12 (0.12)
|
− 0.15 (0.12)
|
|
Grade 7
|
|
Intercept
|
3.17 (0.11)***
|
1.13 (0.10)***
|
2.06 (0.11)***
|
1.38 (0.09)***
|
2.26 (0.10)***
|
|
Slope
|
0.24 (0.06)***
|
0.13 (0.05)**
|
−0.11 (0.06)
|
0.10 (0.05)
|
0.01 (0.06)
|
|
Intercept* Sex
|
1.26 (0.17)***
|
1.11 (0.18)***
|
−0.71 (0.15)***
|
0.76 (0.14)***
|
0.83 (0.16)***
|
|
Slope* Sex
|
−0.18 (0.09)
|
0.14 (0.08)
|
−0.26 (0.08)**
|
−0.09 (0.08)
|
− 0.11 (0.09)
|
|
Intercept/Slope
|
−0.45 (0.13)***
|
− 0.50 (0.18)**
|
−0.48 (0.15)**
|
− 0.40 (0.14)**
|
−0.46 (0.16)**
|
|
Grade 9
|
|
Intercept
|
3.93 (0.12)***
|
1.74 (0.12)***
|
2.09 (0.12)***
|
1.67 (0.09)***
|
2.44 (0.11)***
|
|
Slope
|
0.14 (0.07)
|
0.18 (0.07)
|
−0.17 (0.07)
|
0.16 (0.07)
|
−0.00 (0.07)
|
|
Intercept* Sex
|
1.73 (0.18)***
|
1.35 (0.21)***
|
−1.08 (0.16)***
|
0.86 (0.16)***
|
1.03 (0.17)***
|
|
Slope* Sex
|
−0.39 (0.10)***
|
−0.24 (0.10)
|
0.08 (0.10)
|
−0.15 (0.10)
|
− 0.21 (0.11)
|
|
Intercept/Slope
|
−0.56 (0.15)***
|
− 0.82 (0.21)***
|
−0.61 (0.20)**
|
− 0.61 (0.19)**
|
−0.43 (0.16)**
|
- ** = p < .01; *** = p < .001
- Footnote: Reference group for sex is male
