Table 2.
Effect-sizes and 95% interval | Heterogeneity | Prediction interval | ||||||||
K | n | r | Ll | Ul | Q-value (df) | I 2 | T 2 | Ll | Ul | |
Age | 14 | 16,428 | −0.19 | −0.26 | −0.11 | 733.753 (13) | 98.23 | 0.053 | −0.48 | 0.14 |
internet use | 85 | 55,134 | 0.41 | 0.38 | 0.44 | 1,428.198 (85) | 94.04 | 0.025 | 0.11 | 0.63 |
FU | 11 | 8,339 | 0.35 | 0.27 | 0.42 | 139.914 (10) | 92.85 | 0.020 | 0.03 | 0.60 |
IGU | 3 | 1,019 | 0.49 | 0.32 | 0.64 | 23.908 (2) | 91.63 | 0.033 | −0.97 | 0.99 |
Note. PFU = problematic Facebook use, PIGU = problematic Instagram use.