Table 3.
Regression models and predictors | Overall R2 (adjusted R2), F statistic, degrees of freedom (regression, residual), and partial standardized beta (β) | |
---|---|---|
Best fit, single task | Best fit, across tasks | |
Model 1: Switch costs | R2 = 0.52 (0.41), F3,13 = 4.7* | - |
Cue-locked early P3† | β = –0.26 ns | - |
Cue-locked late P3† | β = –0.39* ns | - |
1st target P3† | β = –0.67** ns | - |
Model 2: Restart costs | R2 = 0.68 (0.60), F3,12 = 8.4** | R2 = 0.27 (0.19), F3,29 = 3.5* |
Cue-locked early P3 | β = 1.10** | β = 0.46* |
Cue-locked late P3 | β = 0.02 ns | β = 0.10 ns |
1st target P3 | β = –0.44 ns | β = –0.69 ns |
Model 3: Mean RTs | R2 = 0.58 (0.48), F3,13 = 5.9* | R2 = 0.37 (0.31), F3,29 = 5.8*** |
Cue-locked early P3 | β = –0.17 ns | β = 0.30 ns |
Cue-locked late P3 | β = 0.04 ns | β = 0.02 ns |
1st target P3 | β = –0.67** | β = –0.77*** |
(ns, non significant).
*P < 0.05.
**P < 0.01.
***P < 0.001.
†Switch minus repeat trial differences in P3 amplitude were used instead of mean P3 amplitudes.