Table 2.
Cognitive scores by mobile phone screen exposure groups.
| Cognitive Outcomes (Mean, (SD)) |
Exposure: Daily MPSE | |||||
|---|---|---|---|---|---|---|
| n | Low (<9 min/d) |
n | Medium (9–20 min/d) |
n | High (>20 min/d) |
|
| HRT-SE (ms) (Inattentiveness) |
213 | 143.84 (66.00) | 185 | 157.76 (75.51) | 209 | 153.95 (76.97) |
| PMA-R score (number of correct items) (Fluid Intelligence) |
213 | 16.69 (5.71) | 183 | 17.05 (5.62) | 209 | 17.15 (5.36) |
| N-Back score (d’) (Working Memory) |
211 | 2.08 (0.76) | 183 | 2.13 (0.8) | 207 | 2.04 (0.77) |
MPSE, mobile phone screen exposure; HRT-SE, hit reaction time standard error; PMA-R, Primary Mental Ability Test. p-values were calculated using ANOVA tests. Significance was set to p < 0.05. None of the results were statistically significant.