Table 4 Mean EEG-vigilance level for 20 min (overall) and the 5–minutes blocks. Differences between T1 and T2 and respective Spearman correlation coefficients (N = 27)
From: Test-retest reliability of brain arousal regulation as assessed with VIGALL 2.0
Time block | T1 (SD) | T2 (SD) | effect size d | Z (p) | rho (p) | ||||
|---|---|---|---|---|---|---|---|---|---|
overall | 4.13 | (0.95) | 3.80 | (1.17) | .31 | −2.35 | (.019) | 0.700 | (.000) |
1 | 5.26 | (0.66) | 4.83 | (1.05) | .49 | −2.22 | (.026) | 0.377 | (.052) |
2 | 4.35 | (1.09) | 4.01 | (1.37) | .27 | −1.71 | (.088) | 0.758 | (.000) |
3 | 3.68 | (1.31) | 3.39 | (1.43) | .21 | −1.44 | (.149) | 0.692 | (.000) |
4 | 3.23 | (1.49) | 2.95 | (1.46) | .19 | −1.23 | (.220) | 0.659 | (.000) |