Table 4.
Average Pearson correlation between episodic memory performance and sleep quality for select sleep measurement methods with the 95% confidence interval
| Sleep Measure | r | LL | UL | k | j | p |
|---|---|---|---|---|---|---|
| PSG | 0.22 | 0.14 | 0.29 | 45 | 558 | <.001 |
| Actigraphy | 0.13 | −0.01 | 0.26 | 6 | 38 | 0.07 |
| Self-Report | 0.05 | −0.11 | 0.21 | 8 | 20 | 0.51 |
NOTE: PSG = polysomnography; LL = lower confidence interval; UL = upper confidence interval; k = the number of studies; j = the number of effect sizes.