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Table 3 Unstandardized Parameter Estimates (with Standard Errors) for Conditional Multi-Group LGCMs

From: A latent growth curve model to estimate electronic screen use patterns amongst adolescents aged 10 to 17 years

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)**

  1. ** = p < .01; *** = p < .001
  2. Footnote: Reference group for sex is male