Figure 1.
Frequency of single-player (top) and multiplayer (bottom) game use and science and mathematics performance.
Error bars represent 95% confidence intervals. As MLwiN does not calculate confidence intervals for multi-level models, we estimated confidence intervals as 1.96 times the standard error of the multilevel model slopes, as recommended in the MlwiN Manual [34].
Table 1.
Standard deviations for the relationship between frequency of videogame use and academic performance for single player and multiplayer videogames across countries and schools.