Table 5 Means and standard deviations of variables by problematic social networking site usage (PSNSU) group
From: Problematic social networking site usage and substance use by young adolescents
VARIABLE | PSNSU Yes(n = 276) Mean ± SD | PSNSU No (n = 796) Mean ± SD | p |
|---|---|---|---|
Age (yr) | 12.62 ± 0.99 | 12.17 ± 0.98 | < 0.001 |
Average school marks | 6.97 ± 1.02 | 7.36 ± 0.98 | < 0.001 |